Friday

September 30, 2016
Total # Posts: 331

**TO BOBPURSLY**

THANK YOU SO MUCH FOR SUCH INCOURAGEMENT. I'm only trying my best because i want to understand all the concepts correctly so like this i don't have worries when my final comes up.

*February 6, 2007*

**math ,correction**

Directions: Solve each of the following problems. Be sure to show the equation used for the solution. The length of a rectangle is 2in. more than twice its width. If the perimeter of the rectangle is 34 in., find the dimensions of the rectangle. Let L = length and W = width. L...

*February 5, 2007*

**MATH,CORRECTION**

Directions solve each of the following problems. Besure to show the equation used for the solution. In a town election, the winning candidate had 220 more votes than the loser. If 810 votes were cast in all, how many votes did each candidate received? answer: Let x = the ...

*February 5, 2007*

**math,correction**

can someone correct this for me. Directions: Solve the following systems by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent. 10x + 2y = 7 y = -5x + 3 the answer: The variable disappeared and 6 ...

*February 5, 2007*

**math,correction**

can someone correct this for me please. Directions: Solve the following system by substitution. 5x-2y=-5 y-5x-3 what i received as the solution are : x = - (1)/(5) and y = 2 which it would look like: (-(1)/(5) , 2) correct.

*February 5, 2007*

**bobprsly**

I do apologize but I looked in the past post and i don't remember asking about this problem in math. But if i did then I do apologize but i don't remember what you said in as the responce. If you can copy and paste it for me to see. Also I know that i have to stand on ...

*February 3, 2007*

**math,help**

How or can someone set this up as an equation or what steps do i do? A garden area is 30ft long and 20ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400ft^2, what is the width of the path? You submitted this a few days ago along with a...

*February 3, 2007*

**math,correction**

Directions are: Perform the indicated division. Rationalize the denominator if necessary. Then simplify each radical expression. (18 + sqrt567)/(9) this is what i got: (41.811761799581315314514541782753)/(9)=4.6457513110645905905016157536393 Your answer is silly. I have about ...

*February 3, 2007*

**math,factoring,help**

Can someone please show me step by step how to do these. I've read the book and there examples and It is just not clicking. Directions: Factor each of the following polynomials completely Problem:#1 14x^2-20x+6 Directions:Find all positive values for "K" for ...

*January 31, 2007*

**dr.bob222**

when you get a small little chance can you check my math in last message i posted. thank you. I read the post earlier but didn't post a response because I was confused by the c in the formula.

*January 30, 2007*

**math,correction**

can someone correct this for me please. Directions: Evaluate each function for the value specified. f (x)=x^2+7c+10, f (-2) so then this is what i did: f(-2)=-2^2-7(-2)+10 = 4+14+10 = 28 so then that means that f(-2) = 28 sorry the formula should read. f(x)=x^2+7x+10 i need to...

*January 30, 2007*

**math,help**

What does it mean to factor an algebraic expression into prime factors? Prime factors are factors that cannot be further factored. Do you know what a interval is in math terms? i need the definition yeah so what do you mean it should be put in help not here in quetions caus ei...

*January 30, 2007*

**math,correction**

Is this correct -2.75 would be in fraction: -2 and (3)/(4) Well actually just -2 3/4 You don't need the word "and" unless spoken.

*January 29, 2007*

**math,help**

I read the meaning of function notation but i still don't understand why are they so important. during an art contest at your school, you and a classmate each won blue ribbons for one third of the pieces you entered in the contest. You won two blue ribbons and your ...

*January 29, 2007*

**math,correction**

the problem is: 4x+y>=4 so after solving for the equation line formula y=mx+b I got : y>= -4x+4 the points to plot was: (-1,8),(0,4),(1,0),(2,-4) and the line will be solid and the shading for solution would be on top going in that-------> direction.

*January 29, 2007*

**math,correction**

the problem is: 3x-4y<12 so i came up with this: after solving for y=mx+b y< (3)/(4)x-3 and two points that i got for the graph was: (0,-3)and(4,0) and when i graph the line is dashed and the solution is going on bottom of the line

*January 29, 2007*

**math,help**

I have forgotton how to change a decimal into a fraction can you please give me the formula. for example for: -2.75 You just have to move the decimal two places to the right and put it over 100. If you multiply a number by some factor and divide it by the same factor it stays ...

*January 29, 2007*

**math,correction**

can someone correct this for me please. Business and finance. Linda Williams has just begun a nursery business and seeks your advice. She has limited funds to spend and wants to stock two kinds of fruit-bearing plants. She lives in the northeastern part of Texas and thinks ...

*January 29, 2007*

**math,correction**

Number problems. You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer. okay this is what i have: Let “d” be the number of dimes and “q” be the number of...

*January 29, 2007*

**algebra,math**

is there a good website where describes the importance of function notations. http://www.cut-the-knot.org/do_you_know/FunctionMain.shtml After reading the website it gives me the definition of function notations. Although what is important about function notation i know its ...

*January 29, 2007*

**math,help**

can someone please just set the equation for me to solve this problem . thanks A solar collector is 2.5m long by 2.0m wide. It is held in place by a frame of uniform width around its outside edge. If the exposed collector area is 2.5m^2, what is the width of the frame, to the ...

*January 28, 2007*

**math,help**

can someone set this up for me as an equation so i can solve it. thanks A garden area is 30ft long and 20ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400ft^2, what is the width of the path. see the frame question. if you dont mind i ...

*January 28, 2007*

**math,correction**

I have to determine which two equations represent parallel lines. equations are (a) y=(-4)x+2 (b) y=(4)x+2 (c) y= (1/2)x +2 (d) y=(-4)x+3 so the answer would be: A and D yes

*January 28, 2007*

**math, correction**

bobpursley. i'm still questioning the problem states find the slope of any line perpendicualr to the line through points (3,3) and (2,8). y= (8-3)/(2-3) the slope i get is. (5)/(-1) for the first slope now to get any line perpendicular to the line through the same points. ...

*January 28, 2007*

**math,correction**

find the slope of any line perpendicualr to the line through points (3,3) and (2,8) so i did: y= (8-3)/(2-8)= (5)/(-6) to find another line perpendicular do i have to take one set of the points and substitute them into y=mx+b? The slope for the perpendcular line is the ...

*January 27, 2007*

**math, correction**

the equation y=17x-90. describes the amount of money a class of students might earn from candy bar sales. What are the slope and y-intercept of this line? so my answer is slope is 17 and y-intercept is: -90 yes

*January 27, 2007*

**math,correction**

The question asks: Find the slope of any ilne parallel to the line through points (20,9) and (7,8). so i found slope which i did: y=(9-8)/(20-7)= (-(-)/(13) so by having the slope how do find another the slope of any line parallel to this one that go through the points. slope ...

*January 27, 2007*

**math, correction**

I have to determine which two equations represent parallel lines. equations are (a) y=(-4)x+2 (b) y=(4)x+2 (c) y= (1/2)x +2 (d) y=(-4)x+3 I think it is b and c Which two have the same slope? Parallel lines have the same slope.

*January 27, 2007*

**math,help**

I have a graph which points are: (-1,-2),(0,2),(1,4) would the equation for this line be y=3x+1 No. These points do not lie on a line. If you read the points off of a graph, you read them wrong.

*January 27, 2007*

**math, help**

It ask write the equation of the line with slope -2 and y-intercept (0,0). so the equation would be : y=-2x Correct!

*January 27, 2007*

**math,correction**

Find the y-intercept of -x - 9y= 9 so this is what i did: -9y = +x +9 i divided both sides by -9 y=(-(1)/(9)x-1 now from here i don't know what to do? y=-1/9 x -1 Yintercept is when x=0 so this is what i get: y=(-(1)/(9)x-1 y= (1(1)/(9)(0)-1 y= -1 so the y intercept is -1 ...

*January 27, 2007*

**math,algebra,help**

Now this one it has a different question it asks: What was the age 15-64 population of Europe in 1970? can someone help me or set up the equation for me i would appreciate it. thank you. okay i have a table it reads. It has 4 colums Title population of Europe by age groups (...

*January 27, 2007*

**math,help, algebra**

okay i have a table it reads. It has 4 colums Title population of Europe by age groups (population is in thousands) First colum it reads down like this age 0-14 age 15-64 age 65+ age 75+ total second colum it reads (In 1950) 143,175 359,162 44,981 14,553 547,318 third colum it...

*January 27, 2007*

**math,correction**

Find four solutions for the equation 3x+5y=15 so the equation will turn to be y=-(3)/(5)x+ (3) and when i do the table i get these points for the solution (-2,4.2),(-1,3.60),(0,3),(1,1.8) ok Let me give you a help. Take the slope, denominator. 5. Now make each x an multiple of...

*January 26, 2007*

**math,correction**

Problem states. which of the ordered pairs (0,0), (-2,10),(-1,-5),(-3,9) are solutions for the equation y=5x? my answer: all first three except the last pair. so yes to (0,0), (-2,10),(-1,-5) You are correct on (0,0) and (-1,-5). You are incorrect on (-2,10). y = 5x = -10 (not...

*January 26, 2007*

**math,help**

the problem says: one day, the temperature at 2:00AM was 44 degrees farenheiht , and by 2:00PM the temperature was 68 degrees farenheit. WHat was the hourly rate of temperature change? the possible answers are to pick from (a) 1 f/h (b) 2 f/h (c) 3f/h (d) 4f/h but when i ...

*January 26, 2007*

**math,correction**

An employee who produces x units per hour earns an hourly wage of y= (0.95)x + 10. (in dollars). Find the hourly wage for an employee who produces 8 units per hour. i just plug in to the formula where x is i put 8 and the answer i got for it after solving was $17.60 correct

*January 26, 2007*

**math,correction**

the problem states. find the slope of any line perpendicular to the line through points (3,3) and (2,8). so did the formula m= (y2-y1)/(x2-x1) and from it i got -5 so the slope is -5 and anyline perpendicular to this sloe would be positive 5 is that correct. no. the slope ...

*January 26, 2007*

**bobpursley, math,correction**

Let n be a postive integer, then n+1 is the next integer. sum the squares of those noumbers: n^2 + n^2 + 2n +1=85 solve for n. so this is what i did. n^2+2n+1=85 n^2+2n=85-1 n^2+2n=84 n=7056+4n

*January 26, 2007*

**to bobpursley,math,correction**

(sqrt3 + 5)(sqrt3 -3) ? multiply that out sqrt3*sqrt3 -3sqrt3 +5sqrt3 -15 now combine and simplify terms. yes the problems is: ((sqrt3)+5)((sqrt3)-3) if i put in my calculator what the squareroot of 3 it will give me 1.7 so if i it by decimals i get the follwoing 2.89-5.1+8.5-...

*January 26, 2007*

**math, algebra,correction**

I don't know if this is right. directions: Simplify each radical expression. (radical 3+5)(radical 3-3) i think its: radical 3+2 Life would be so much simpler if you would use parenthesis. Did you mean this? (sqrt3 + 5)(sqrt3 -3) ? multiply that out sqrt3*sqrt3 -3sqrt3 +...

*January 26, 2007*

**math,algebra,help**

Directions are simplify by combining like terms. x radiacal 18 -3 radical 8x^2 can someone show me how to do these types of problems. thanks I cant determine the second term. For the first, I think you meant x sqrt(18) which reduces to x sqrt (9*3) or 3x sqrt 3 First remove ...

*January 26, 2007*

**math,help**

this other one how can i actually prove it if this is the equation to use. the problem states: Prove that if a line has slope ma nd y-intercept b, then an equation of th eline is y=mx+b. then it says (Hint: use the point-slope equation theorem) I've looked at it but i ...

*January 25, 2007*

**math,question**

okay i really don't understand this problem. It says: Prove the point-slope equation property which is : Point-slope equation(an nonvertical line with slope m and containing a point (X1,Y1) has the point-slope equation of y-y1=m(x-x1). Now show that any point (x2,y2) on ...

*January 25, 2007*

**math,question**

on a graph if a line is running verticle right on 5, then the slope of it would be x=5 yes thank you so much for all your help you are awsome.

*January 25, 2007*

**math, correction**

the equation is and directions are: graph x-y=-2 so then the equation would really be: y=-x+2 and from here i would do the table to plot the points. Close. y=x+2, not -x+2. Then, yes, plot the points. so your saying that the equation that i have to graph would be: y= x+2 not y...

*January 25, 2007*

**Belinda, Math**

I aked the instructor about that problem that looked like this: (w-(1)/(4))^2 and he said that what i thought was right. which was : the answer:w^2-(1)/(2)w+(1)/(6) Yes, that's right. I just thought your way of getting the answer was more complicated than it could have ...

*January 25, 2007*

**math,algebra,help**

Okay now i need explanation how to do these types of problems. Directions: Divide Problem: (7x^5y^5-21x^4y^4+14x^3y^3)/(7x^3y^3) Realize that you have 7x^3y^3 on the bottom. Now in order to get rid of that, you want to have the same thing in the top, multiplied by something ...

*January 24, 2007*

**Belinda, Math**

Thank you I did figure it out i think: so the problem was ((w)-(1)/(4))^2 The final answer that i got was w^2-(1)/(2)w+ (1)/(16) Sorry, no again. :) Make sure you really look at how to multiply binomials and FOIL them out. It will come back to haunt you. a lot. These are the ...

*January 24, 2007*

**math**

Directions: Find the slope of any line perpendicular to the line through points(0,5) and (-3,-4). THis is what i did. m=(-4-5)/(-3-0)=(9)/(3)=3 y=mx+b using points :(0,5) 5=3(0)+b 5=b y=3x+5 so the slope of the perpendicular line is (-1)/(3) When finding the slope, you got ...

*January 24, 2007*

**math,help**

okay Directions: find the following squares. Problem: ((w)-(1)/(4))^2 I have no idea how to even start. First, FOIL the numerator and then square the denominator. Let me know what you get. (-1w^2)/(4w^2) is this what you mean? No :) Your numerator is w-1. Your denominator is 4...

*January 24, 2007*

**math,correction**

Directions:Multiply Problem: ((x)/(3)+(3)/(4)) ((3x)/(4)-(3)/(5)) so the answer for it i got: ((20x^2+20x-36)/(80)) I worked it and I have what you have EXCEPT 29x instead of 20x. If you can't find the error, post your work and we can help you find it. PLEASE HELP ME FIND ...

*January 24, 2007*

**math,help**

okay the problem states. the price of an item is given by p=2x^2-100 Find the polynomial that represents the revenue generated from the sale of x items. So this is what i did so far: First i tried solving for x using the equation. so p+100=2x^2 the rest i don't know what ...

*January 24, 2007*

**math,correction**

The problem states: In planning for a new item, a manufacturer assumes that hte number of items produced X and the cost in dollars C of producing these items are related by a linear equation. Projections are that 100 items will cost $10,000 to produce and that 300 items will ...

*January 24, 2007*

**math, question**

IN graphing if i have two sets of parallel lines and the opposite sides are perpendicular then that means that it is not a parallelogram it is a rectangle diagram. sounds right...rectangle or a square thank you 14+d=6d 14+d=6d

*January 23, 2007*

**MATH ,CORRECTION**

DIRECTIONS ARE. WRITE THE EQUATION OF THE LINE L satisfying the given geometric conditions. Problem is: L has y-intercept (0,-3) and is parallel to the line with equation y=(2/3)x +1. So, this is what i did: Y=(2/3)x+b....it passes through (0,-3) -3=b so, the equation is: y=(2...

*January 23, 2007*

**math, correction**

Problem states: A square has sides of length 3x-2cm. Express the area of the square as a polynomial. my answer: (3x-2)^2 should i leave it like this or 9x^2-12x+4 I would multiply it out. CAN YOU SHOW mE WHAT YOU MEAN. I'M CONFUSED.

*January 23, 2007*

**math correction**

Directions: Perform the indicated divisions. The problem: (8x^3-6x^2+2x)/(4x+1) This is what i did and what i got: (4x^5)/(5x) = The answer that i got was: 0.80x^4 It is so wrong it hurts. How in the world did you get (8x^3-6x^2+2x) is equal to 4x^5 ? There are no x^5 in the ...

*January 23, 2007*

**Math, correction**

the directions are perform the indicated divisions. so the problem is: (x^2-2x-35)/(x+5) so these are the steps i took: (-36x^3)/(6x)= so my answer was: -6x^2 Nope. Factor the numerator, one of the factors will be x+5, which will divide out.

*January 23, 2007*

**math help!**

Directions are: Divide The problem is: (7x^5y^5-21^x^4y^4+14x^3y^3)/(7x^3y^3) what steps or better say where do i start. factor out common terms in the numerator. I see a 7x^3 y^3 that can come out. check that, I did it quickly.

*January 23, 2007*

**ms.sue, religion help**

see i know that there is information on judaism. but see i have the titles but i have to convert each title intot a slide that describes/explains judaism to a 9yr.old kid. now the thing is that for each slide there can only be approx. 5lines and 5 words per bullet item. so ...

*January 21, 2007*

**algebra,math**

i am clueless about this: (#1)What expression raised to the fourth power is 81x^12y^8z^16? (#2)Simplify each of the following expressions. Write your answers with positive exponents only. (x^2)^-3(x^-2) divided by (x^2)^-4 #1 answer (3x^3)(y^2)(z^4) because 3^4=81 (x^3)^4=x^12...

*January 21, 2007*

**math,algebra**

Use the five properties of exponents to simplify each of the following expressions (y^5)^3(y^3)^2 divided by (y^4)^4 can someone show me how to solve these types of problems (y^5)^3= y^15 multiply the powers (y^3)^2=y^6 multiply the powers again as you have a power raised to a...

*January 21, 2007*

**math,algebra,help**

Problem states: Business and finance. The cost of producing a number of items x is given by C = mx + b, in which b is the fixed cost and m is the variable cost (the cost of producing one more item). (a)If the fixed cost is $40 and the variable cost is $10, write the cost ...

*January 16, 2007*

**math, correction**

Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept. Problem #1: Slope: -2; y-intercept: (0,4) my answer: The points I used to graph were: (0, 4) and (2, 0), the equation is: Y= -2x + 4 Problem #2: Slope: 5; y-...

*January 16, 2007*

**math correction**

Find the slope of any line perpendicular to the line through points (0,5) and (-3, -4). the slope i get is = 3 so the slope of any line perpendicular would be the reciprocal of 3 which is -3/1 is that the correct answer. or do i have to word it differenly like y = -3/1x + 5 if...

*January 16, 2007*

**math,correction & help**

Write the equation of the line L satisfying the given geometric conditions. L has y-intercept (0, -3) and is parallel to the line with equation y = 2/3x + 1.

*January 16, 2007*

**math,correction,&help**

Write the equation of the line L satisfying the given geometric conditions. L has y-intercept (0,2) and is perpendicular to the line with equation 2x-3y = 6 Equation of perpendicular line is of the form 3x + 2y = K…It passes through (0,2) 2(2) = K = 4 So, Equation is

*January 16, 2007*

**math , correction**

theres a diagram which in the diagram the points are: (-3,1),(0,3),(2,0), (-1,-2). And the directions say: use the concept of slope to determine if the given figure is a parallelogram or a rectangle: so this is what i did please can someone check it to see if i am correct. M...

*January 15, 2007*

**math,correction**

can someone please correct this for me. i have to graph: y = 3/4x + 2 so the points i got for plotting is: (-4,-1),(0,2),(4,5) then i just connect the points to get the line. If they plot on a line the answer is correct. y= 3/4 x + 2 is a line, and all solutions have to be on ...

*January 15, 2007*

**I need help.,math**

Is this correct or wrong? Technology. Driving down a mountain, Tom finds that he has descended 1800ft in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth. so i would change miles to feet ...

*January 15, 2007*

**how would i solve this, math**

Geometry. For the floor plans given in exercise 27, determine whether the side through the points (2,3) and (11,6) is perpendicular to the side through the points (2,3) and (-3,18). # 27 states the following: Geometry. Floor plans for a building have the four corners of a room...

*January 15, 2007*

**math,help**

how do you convert miles to feet. what formula do i use. one mile=5280feet so you would multiply the number of miles to 5280 to get feet thank you

*January 15, 2007*

**math**

is this correct then. Why might fuction notations be important? My answer: a function notation shows how x computes based on an equation. The function of x means the given equation a certain value. Such as f(x)=x + 7. For example f(6)=6 + 7. So, f(6)=13 the function equals 13...

*January 15, 2007*

**math, correction**

for graphing: y =10x +40 some points would be: (-3,10), (0,40), and (3,70) yes.

*January 14, 2007*

**math,correction**

Graph each of the following equations by first solving for y. 2x – 3y = 12 so it would be: y = 2/3x – 4 and the solutions points would be: So (-3,-6) is a solution

*January 14, 2007*

**math, correction**

Graph each of the following equation, using the intercept method. 2x + 3y = 6 so the solutions are (0,2) and (3,0) yes.

*January 14, 2007*

**math correction**

graphing : y = 3/4x +2 the points i have are: (-3, -1/4), (-2,1/2),(-1,1 and 1/4)0,2),(1, 2 and 3/4),(2, 3and 1/2)(3, 4 and 1/4),(4,5) Question: If you graphed this...did the points fall on the line? If they did, they have to be points on the line. graphing : y = 3/4x +2 the ...

*January 14, 2007*

**math,question**

why are function notation important? I dont know that it is important. However, it is a convenient shorthand notation that speaks to the variables and the function rather plainly. what do you mean speaking to the variables can you give me an example of what you refer to please.

*January 14, 2007*

**math, correction**

The revenue for a sandwich shop is directly proportional to its advertising budget. When the owner spent $2000 a month on advertising, the revenue was $120,000. If the revenue is now $180,000, how much is the owner spending on advertising? Formula: rev = k (ad bud) 120,000 = k...

*January 14, 2007*

**math,algebra**

I have to make a word problem with a real life situation that follows a linear equation i have to come up with the independent variables being years.Then i have to create an equation or inequality that could be used for analysis, prediction, or decision making.then, draw the ...

*January 14, 2007*

**math help**

what or how would i solve the following i don't need the answer i want to do it but how would i solve this. Water pressure (p) in hte ocean is 2.3 tons per square inch at a depth (d) of 2miles and 3.45 tons per square inch at depth of 3 miles. How do i find the linear ...

*January 13, 2007*

**math, help**

how do i write the equations so i can solve it i will do the solving but help me out with the equation please.for the following: Four pencils and five pens cost$2.00. THree pencils and four pens cost $1.58. Find the cost fo a pencil and the cost of a pen. and then also for ...

*January 13, 2007*

**need help in math,**

Translate to a system of equations and solve using the addition method. The sum of two numbers is88. The difference is 22.Find the numbers? My answer: I started but i think that i am wrong. x + y = 88 y = -x +88 y = -1x + 88 now once i substituted x -1x + 88 = 88 see i don'...

*January 13, 2007*

**math,correction,help**

please can someone tell me where i am wrong. Directions: Translate to a system of equations and solve. Problem: Colored copies cost 10cents per copy and white copies cost 5cents per copy. Sandy made 400 copies, some of which were colored and the rest white. Her total bill wa $...

*January 13, 2007*

**math,algebra**

what is the difference and similarities if solving an equation with varibles in the equation if it had 1 or 2 or even 3 variables? Here is one: Money left in Wallet= money earned + money found - money lost - money spent. I don't understand? can you please explain...

*January 13, 2007*

**math,algebra**

what is a real-life situation that follwos a linear equation, withthe independent variables being years. What would the slope say about the future years. Wood growth in a forest vs time. Wood growth = m * time can you help me understand i don't get still what am i suppost ...

*January 13, 2007*

**dwrls,math**

PLEASE LOOK IN THE BOTTOM OF THIS MESSAGE...... solve for x: 3x - 2y = 6 i need help in solving this: the possible answers has to be one of these: A)2y +6 divided by 3 b)3x -6 divided by 2 C) 2 + 2y D) 2/3y + 6 but how i keep trying and i don't get non of these. For ...

*January 11, 2007*

**math correction**

solve for x: 3x - 2y = 6 i need help in solving this: the possible answers has to be one of these: A)2y +6 divided by 3 b)3x -6 divided by 2 C) 2 + 2y D) 2/3y + 6 but how i keep trying and i don't get non of these. Add 2y to both sides of the equation. That will give you ...

*January 11, 2007*

**math help, correction**

Anna has 12 bills in her wallet, some $5 and some $10. The total value of the bills is $100. HOw many of each bill odes Anna have? How do i solve these type of problems my quess was this but i don't know if i'm correct. 5(x) + 10(y) = 100 5(0) + 10y = 100 10y = 100...

*January 11, 2007*

**Math correction**

(1)Translate the following statement into an algebraic equation. Lex x represent the number. 12 less than 5 times a number is 18 my answer: 5x - 12 = 18 (#2) 4 times a number, increased by 9, is 17. Find the number. My answer: 4x + 9 =17 looks ok to me.

*January 11, 2007*

**math correction**

A rectangular solid has a base with length 2 cm and width 6cm. If the volume of the solid is 108 cm^3. Find the height of the solid. Possible answers are: A) 8cm B)9cm C) 10cm D) 11cm My answer: V = LWH 108 = (2)(6)H 108= 12H --- --- 12 12 9 = H right

*January 11, 2007*

**drbob222 math,correction**

i made some corrections for the previous postage can you check those when you get a chance please. Also for this one: my options of answers are: A)2y + 6/3 B)3x- 6 /2 C)2 + 2y D)2/3y + 6 Directions: Solve for x: 3x - 2y =6 3x - 2y = 6 +2y +2y 3x = 6 +2y -- ------ 3 3 so my ...

*January 11, 2007*

**math correction**

an arithmatic student needs an average of 70 or more to receive credit for the course. She scored 68,69, and 83 on the first three exams. Write an inequality representing the score she must get on the last test to receive credit for the course. my answer is: x >= 60 x is ...

*January 11, 2007*

**math correction**

solve: x -8 = 4 + 8 +8 x = 12 my answer is x = 12 solve: 80 = 10x -- --- 10 10 8 = x my answer is x =8 solve: 3x= -12 -- --- 3 3 x = -4 my answer is x = -4 Solve: 12 -3x = 9 -12 -12 -3x = -3 --- --- -3 -3 x = 1 my answer is x = 1 ok on all of them.

*January 11, 2007*

**math,correction**

can someone correct these for me i'll appreciate it thank. dirctions: solve 3x-7=2x+8 my answer: x = 15 directions: solve 2/5x=-10 my answer: x = -25 Directions: solve -3(x+1)=2(x-8)+3 my answer: x= -3.2 1 looks ok. Show your work on 2 and 3 and we can correct them. okay ...

*January 11, 2007*

**math correction**

can someone correct this for me.Also do i have to solve it all the way or what does it mean by inequality form. Business and finance. The cost for a long-distance telephone call is $0.36 for the first minute and $0.21 for each additional minute or portion thereof. Write an ...

*January 9, 2007*

**math,correction**

can someone correct this for me please. Statistics. Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C ...

*January 9, 2007*

**math,correction**

can someone correct this for me. 7(x –3) > 5x - 14 7x –21 > 5x –14 -5x -5x 1x –21 > -14 +21 +21 1x > 7 1x / 1 > 7 / 1 x > 7 the line has an open circle right on number 7 with an arrow going to the positive side. No. WHen you subtraced 5x ...

*January 9, 2007*

**maht correction**

Translate the following statements into inequalities. Let x represent the number in each case. 2 times a number, increased by 28, is less than or equal to 6 times that number.

*January 8, 2007*