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September 20, 2014

September 20, 2014

**Recent Homework Questions About Algebra**

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**algebra**

what is the density of a billiard ball that has a volume of 100cm cubed and a mass of 250g?
*Sunday, October 14, 2012 at 5:07pm*

**Algebra inequality**

I have to choose a variable and write inequality For less than or equal to I'm using these keys <| Cuz I don't Jon how to show when I type 1. A van can hold a maximum of 8 passengers I wrote V <| 8 V is less than or equal to 8 2. To apply for a job you need to ...
*Sunday, October 14, 2012 at 1:43pm*

**algebra**

X-5/3 =1 Or X - 5 = 1 ______ 3 I'm trying to type and tell you it's x-5 over 3 equals 1 I don't know how to do I think I have to do reverse operation which is multiply
*Sunday, October 14, 2012 at 1:09pm*

**algebra**

X-5/3 =1 Or X - 5 = 1 ______ 3 I'm trying to type and tell you it's x-5 over 3 equals 1 I don't know how to do I think I have to do reverse operation which is multiply
*Sunday, October 14, 2012 at 1:09pm*

**ALGebra**

Can you check 2x + 3 (x-2) -3 (x-6) I got 2x+3x-6 -3x+18 2x+3x-3x= 2x -6+18 =12 Final answer : 2x+ 12
*Sunday, October 14, 2012 at 12:56pm*

**algebra**

5A=5-b 5A=3-b
*Sunday, October 14, 2012 at 12:46pm*

**Algebra. .**

Can you check 2/3 k = 60 I got:: 3 2 k = 60 * 3 = 90 ________________ 2 3 1 2 = 2 K = 90/2 K = 45
*Sunday, October 14, 2012 at 12:19pm*

**Algebra pls check**

Is this right ? -2(w-30) =-6w -2w -60 = -6 w +2w =+2w -60 = -4w _____________ -4 = -4 15 = w
*Sunday, October 14, 2012 at 12:08pm*

**college algebra**

a man left 1\2 of his estate to his wife, 1\6 to his daughter, and the remainder an amount of $15,000, to his son. How large was the entire estate?
*Sunday, October 14, 2012 at 6:52am*

**algebra**

For the statement that says: b + (-a) = b - a What property would that be? Is it the addition property of equality? or something else.
*Saturday, October 13, 2012 at 8:20pm*

**Algebra**

A scuba diver dives 100 feet below the waters surface. Later she rises 78 feet. How far below the surface is the diver?
*Saturday, October 13, 2012 at 3:56pm*

**Algebra 1**

oops -for my last question i meant rectangle
*Saturday, October 13, 2012 at 2:37pm*

**Algebra 1**

Perimiter of Rectangle is 54cm, the width is 1/2(length)... what is the width & Length of the triangle?
*Saturday, October 13, 2012 at 2:29pm*

**Algebra 2**

The excursion boat on the river takes 2½ hours to make the trip to a point 12 miles upstream and to return. If the rate at which the boat travels in still water is 5 times the rate of the river current, what is the rate of the current? Which of the following equations ...
*Saturday, October 13, 2012 at 2:09pm*

**Algebra**

The total amount of water in 2 containers is 35quarts. If 7 quarts gets poured from the container with less water into the continer with more water, the container with more water will have 4times as much water as the other container. How many quarts are in the container with ...
*Saturday, October 13, 2012 at 12:25pm*

**Algebra 2**

A company placed $1,000,000 in three different accounts. It placed part in short term notes paying 4.5% per year, twice as much in government bonds paying 5%, and the rest in utility bonds paying 4%. The income after one year was $45,500. What are the three equations needed to...
*Friday, October 12, 2012 at 9:22pm*

**ALGEBRA**

3 − 24 ÷ 8 + 42
*Friday, October 12, 2012 at 7:44pm*

**Algebra**

How do the solutions of the equation compare to the length of the rectangular object and the x-intercept of the graph? Provide both the solutions and measurement. x^3-10x^2+21x -108 = 0 Length: 9 inches Height: 6 inches Width: 2 inches
*Friday, October 12, 2012 at 7:39pm*

**algebra**

-13 + 20
*Friday, October 12, 2012 at 7:30pm*

**algebra**

3x - 6y + 2z - 5x - 3y + 8z
*Friday, October 12, 2012 at 7:12pm*

**algebra**

solve 8x+4=3x+8
*Friday, October 12, 2012 at 6:39pm*

**Algebra 2**

A company placed $1,000,000 in three different accounts. It placed part in short term notes paying 4.5% per year, twice as much in government bonds paying 5%, and the rest in utility bonds paying 4%. The income after one year was $45,500. What are the three equations needed to...
*Friday, October 12, 2012 at 6:28pm*

**algebra 2**

A car enters an interstate highway 15 mi north of a city.The car travels due north at an average speed of 62.5 mi/h.Write an equation to model the car’s distance d from the city after traveling for h hours. Graph the equation
*Friday, October 12, 2012 at 12:53pm*

**Math (algebra)**

I have no idea how to solve this problem... A village wants to build a community center that is projected to cost 1.2 million dollars. Cost per resident is increased by #$ as it is discovered that there are 225 fewer residents than when planning began 2 years ago. What is the ...
*Friday, October 12, 2012 at 11:13am*

**Algebra 1 **

Ruffles cost $3.49 per bag. Chips-Ahoy cost $3.99 per bag. Bobby spent 42.39. If he bought 5 more bags of Chip-Ahoy than Ruffles, how many bags of each snack did he buy?
*Thursday, October 11, 2012 at 11:57pm*

**Algebra**

How would you set up problem: your average rate traveling uphill was 2.2 kilometers per hour and average rate downhill was 3.3 kilometers per hour. If he spent a total of 12 hours hiking, how long was the trail?
*Thursday, October 11, 2012 at 9:39pm*

**Algebra**

I cannot solve the problem please help me. I'm suppose to set the equations up to solve for t. x = y + rt + at^2/2 Even when I plug in the values I don't get the answer. x = 16.4 y= 0 r= 0*cos(45)a=0 t is suppose to equal 2.32 if I set the problem up correctly.
*Thursday, October 11, 2012 at 4:55pm*

**Algebra**

solve by elimination: 6a+2b = -48 -6a+b = 57 What is the solution set ( , )?
*Thursday, October 11, 2012 at 4:42pm*

**algebra 2**

Solve for x: x=4+x divided by y-3
*Thursday, October 11, 2012 at 4:40pm*

**algebra 2**

3/-8 * 2/7 * (-3) Its multiplying fractions, but it wants the answer in simplest form!
*Thursday, October 11, 2012 at 4:35pm*

**algebra 2**

-3u+7/2=-4/3u-5/4 solve for u in simplest form.
*Thursday, October 11, 2012 at 4:27pm*

**algebra**

The reflection of the tree in the lake is 49 in long. If your shadow in the lake is 14 in long and you are 5 ft, how tall is the tree? Put your answer as inches.
*Thursday, October 11, 2012 at 4:13pm*

**algebra **

find the maximum or minimum of the following quadratic function: y =x2 - 10x + 25
*Thursday, October 11, 2012 at 3:40pm*

**Basic algebra**

The length of a rectangle is 9 feet longer than twice the width. If the perimeter is 90 feet, find the length and width of the rectangle?
*Thursday, October 11, 2012 at 2:23pm*

**Linear algebra**

Show that the origin is the only equilibrium point of the system? X=ax+by Y=cx+dy Wherea,b,c and d are constants, with ad-bc not aqual to 0(zero) Please show me how to do this problem Please show me the work
*Thursday, October 11, 2012 at 9:36am*

**Algebra**

2n-11=m/4 n=m/-3 Solve for the variables using substitution
*Thursday, October 11, 2012 at 2:11am*

**math-algebra 2**

What are the solutions of the quadratic equation? 2x2 – 16x + 32 = 0
*Thursday, October 11, 2012 at 1:08am*

**algebra**

approximate square root to the nearest integer-------- square root of 46
*Wednesday, October 10, 2012 at 11:36pm*

**algebra**

Find the least common multiple of the monomials. 5a squared, and 16a cubed. Also 17b squared and 3b cubed. Could you show me how to do these. Thank you, Sandy
*Wednesday, October 10, 2012 at 10:55pm*

**Linear Algebra**

1. Considering 2 planes with equations: x + 2y - 3z = 1 x + 2y - 3z = 18 (a) Given (a,b,c) a point on the first plane, find the point where the line perpendicular to both planes passes by (a,b,c) and through the 2nd plane.
*Wednesday, October 10, 2012 at 10:42pm*

**algebra**

explain how to get answer and what is answer 14 times x to the power of 16 divided by 6 times x to the power of 11
*Wednesday, October 10, 2012 at 10:27pm*

**algebra**

-1/2m > -7
*Wednesday, October 10, 2012 at 10:02pm*

**Algebra**

How can you tell by looking at a table if its quadratic, linear or exponential? For ex. x: -2, -1, 0, 1, 2 y: 6, 1, 0, 1, 6
*Wednesday, October 10, 2012 at 9:00pm*

**Algebra 2**

The Denominator of a fraction exceeds the numerator by 4. When 3 is added to both the numerator and denominator, the fraction becomes 4/5. Find the fraction.
*Wednesday, October 10, 2012 at 7:52pm*

**Algebra**

What is the additive inverse of -2^5?
*Wednesday, October 10, 2012 at 7:07pm*

**pre-ap Algebra 2**

write a polynomial function f of least degree that has the rational coefficients, a leading coefficient of 1, and the given zeros. Given zeros: -2,2,-1,3, sqrt 11
*Wednesday, October 10, 2012 at 2:19am*

**Linear Algebra**

1. Considering 2 planes with equations: x + 2y - 3z = 1 x + 2y - 3z = 18 (a) Given (a,b,c) a point on the first plane, find the point where the line perpendicular to both planes passes by (a,b,c) and through the 2nd plane.
*Wednesday, October 10, 2012 at 12:15am*

**Algebra**

Can someone explain how you could convert a repeating, nonterminating decimal to a fraction? Thanks. :)
*Tuesday, October 9, 2012 at 11:00pm*

**Algebra**

(3/10)x-3=6
*Tuesday, October 9, 2012 at 10:01pm*

**Algebra**

Debra has 2/3 of a pound of loose green tea leaves. If she wants to keep one-half of the tea at home and the other half at work, what fraction of a pound will she have at work? 1/6, 1/4, 1/3, or 1/2? I would personally say 1/3, but, could someone explain this thoroughly?
*Tuesday, October 9, 2012 at 9:57pm*

**Math, Algebra.**

2. Sylvia has 6 1/2 boxes of chocolate to share at a family picnic. If she gives each person 1/3 of a box, how many people can receive chocolate? 13, 17, 19, or 21? I believe that the answer is 19. Take 6 1/2, divided by 1/3, and get 19 1/2. Since 19 is the closest answer, the...
*Tuesday, October 9, 2012 at 9:29pm*

**Honors Algebra 2**

How do you simplify terms like 3z^2 x 2z^3?
*Tuesday, October 9, 2012 at 8:46pm*

**Algebra 1**

What is the slope, m, of the line that contains the points (-12, 16), (-3, 4) and (6,-8)?
*Tuesday, October 9, 2012 at 7:37pm*

**Algebra**

At noon the temperature is 30 degree F. For the next several hours the temperature falls by an average of 3 degrees F an hour. What's the equation for the temperature and the hours after noon?
*Tuesday, October 9, 2012 at 5:48pm*

**algebra**

A family spends 20% of It's monthly income on food,23% on rent,and 42% on other expenses and saves the balance.if the family saves $360 per month,what is It's monthly income
*Tuesday, October 9, 2012 at 5:45pm*

**Algebra **

A natural food store makes its own brand of trail mix out of dried apples, raisins, and peanuts. One pound of the mixture costs 3.18. It contains twice as much peanuts by weight as apples. One pound of dried apples cost $4.48, a pound of raisins costs $2.40, and a pound of ...
*Tuesday, October 9, 2012 at 5:22pm*

**Algebra**

What is the inverse of y = (3/7)x + 9 I know you have to switch x and y so I get to x-9=(3/7)y from there I don't know what to do.
*Tuesday, October 9, 2012 at 4:22pm*

**Algebra Grade 7**

the ratio of square H's length to square I's length is 3 : 5, if the length of square H is 18 meters, what is the perimeter of square I?
*Tuesday, October 9, 2012 at 4:08pm*

**Algebra Grade 7**

parallelograms small parallelogram 22 cm ?? (find this number) big parallelogram 16 cm 32 cm What is the missing number and how can I find it?
*Tuesday, October 9, 2012 at 4:00pm*

**Algebra 2**

Write the standard form of the equation of the line through the given point with the given slope. Through point: (1,2) slope=7
*Tuesday, October 9, 2012 at 3:37pm*

**Algebra **

Tom has a 15 foot ladder that he leaned against the wall of his house. Tom put the base of the ladder 3 feet away from the house. How far up The house is the top of the ladder?
*Tuesday, October 9, 2012 at 1:00am*

**algebra**

simplify the expression. Justify each step. (m+4.5)-0.5
*Monday, October 8, 2012 at 11:32pm*

**High School, Pre Algebra**

-1 3/7* (-3 2/3) A. 3 2/7 B. -5 5/21 C. 11 D. 5 5/21 I got A , but then I tried figuring it out again and I think the denominator is 21
*Monday, October 8, 2012 at 9:31pm*

**Algebra Grade 7**

suppose you have ABC with AB=5, BC=7, and CA=10, and also EFG with EF=900, FG=1260, and GE=18/00. are these triangles similar, and if so what is the scale factor?
*Monday, October 8, 2012 at 8:08pm*

**Algebra **

sorry, having a brain malfunction but which is a function: "x is a student y" "x is the biological daughter of mother y"
*Monday, October 8, 2012 at 8:03pm*

**algebra 2**

Samantha needs to solve the equation x2 - 12x = 40. What must she do to each side of the equation to complete the square?
*Monday, October 8, 2012 at 7:44pm*

**algebra 2**

Samantha needs to solve the equation x2 - 12x = 40. What must she do to each side of the equation to complete the square?
*Monday, October 8, 2012 at 7:20pm*

**Algebra**

A 5 ft man cast a shadow of 3 ft standing next to a 22ft building. How far is the man standing from the building?
*Monday, October 8, 2012 at 6:17pm*

**Algebra**

A grocer mixes 5 lb of egg noodles costing $ .80/lb with 2 lb of spinach noodles costing $1.50/lb. What will the cost per pound of the mixture be?
*Monday, October 8, 2012 at 5:23pm*

**Algebra**

Susan drove for 2 hours at 85 km/hr and then for 3 hours more at 95 km/hr. What was her average speed for the entire trip?
*Monday, October 8, 2012 at 5:21pm*

**Algebra**

If 800ml of a juice drink is 15% grape juice, how much should be added to make a drink that is 20% grape juice?
*Monday, October 8, 2012 at 5:20pm*

**Algebra**

If you drive for 2 hours at 80 mph, how fast must you drive during the next hour in order to have an average speed of 75 mph?
*Monday, October 8, 2012 at 5:18pm*

**Algebra**

A farm stand owner mixes apple juice and cranberry juice. How much should he charge if he mixes 8 L of apple juice selling for .45/L with 10 L of cranberry juice selling for $1.08/L?
*Monday, October 8, 2012 at 5:17pm*

**Algebra**

A chemist has 40 ml of a solution that is 50% acid. How much water should be added to make a solution that is 10% acid?
*Monday, October 8, 2012 at 5:13pm*

**Advanced algebra**

1.write the first four terms of the sequence that begins with 2000 and has the common ratio 1.05. 2.write the first four terms of the sequence that begins with 5000 and decays 15% with each term.what is the common ratio? 3.write a recursive formula for the sequence that begins...
*Monday, October 8, 2012 at 3:48pm*

**College Algebra**

The ratio of the surface area of a solid cube to its volume is 4 to 1. The diagonal of the cube is?
*Monday, October 8, 2012 at 10:36am*

**algebra**

need help with logarithmns quiz algebra 2a unit 7 connections academy
*Sunday, October 7, 2012 at 11:03pm*

**Algebra**

Anne has 20 coins in her pocket consisting of nickels and dimes only. The total value of the coins is $1.45. How many nickels and how many dimes does she have? (Let x represent the number of nickels and y represent the number of dimes.)
*Sunday, October 7, 2012 at 3:19pm*

**Algebra**

A rectangle is 4 inches longer than it is wide. It's perimeter is 28 inches. Write a system of two equations in two variables that describes this information. Then solve the system graphically.
*Sunday, October 7, 2012 at 1:38pm*

**algebra 2**

i'm trying to solve this system of equations with 3 variables 5a-b+3c=5 2a+7b-2c=5 4a-5b-7c=-65 i tried to make the first equation like a=something so i could substitute it in to the 2nd equation, however i get decimals so it doesnt work how do i do this problem?
*Sunday, October 7, 2012 at 1:29pm*

**algebra**

10y^3+y^2-21y
*Sunday, October 7, 2012 at 12:23am*

**algebra**

10y^3+y^2-21y
*Sunday, October 7, 2012 at 12:21am*

**algebra**

M --- +. 5= -2 3.
*Saturday, October 6, 2012 at 10:47pm*

**algebra**

John measures the dimensions of a roomto be 16.6ft times 15.23 ft. How many significant digits should he use when calculating the area of the room?
*Saturday, October 6, 2012 at 8:51pm*

**algebra**

A total of $12,000 is invested in two funds paying 9% and 11% simple interest. If the yearly interest is $1,180, how much of the $12,000 is invested at each rate? We have two unknowns: the amount of money invested at 9% and the amount of money invested at 11%. Sentence (1) &#...
*Saturday, October 6, 2012 at 8:51pm*

**Algebra**

Would someone please help me figure this one out? (¡î5 b©ø/©÷)^4 a^9 / a^-©øb^5
*Saturday, October 6, 2012 at 8:15pm*

**Algebra**

A builder has 80 feet of fencing to create an enclosure adjacent to a long existing wall. He will use the wall for one side and the available fencing for the remaining three sides. If the sides perpendicular to the wall have length x feet, which of the following represents the...
*Saturday, October 6, 2012 at 8:02pm*

**Algebra**

How do I solve 6/2x - 1 - 2/2x+1
*Saturday, October 6, 2012 at 7:34pm*

**Algebra**

Of 30 runners surveyed, 22 go running in the morning and 15 go running in the evening. Seven of the runners surveyed go running in both the morning and the evening. How many runners go running in the morning but not the evening?
*Saturday, October 6, 2012 at 7:10pm*

**Math**

Algebra Find the value of 78 X n when n = 3,237.
*Saturday, October 6, 2012 at 1:52pm*

**math-algebra**

one pump can empty a pool in 5 days, wheras a second pump can emtpy pool in 7 days. how long will it take the two pumps, working together, to empty the pool?
*Friday, October 5, 2012 at 7:53pm*

**Math(Algebra)**

An arrow is shot vertically upward from the top of a cliff 80 feet tall, with an initial velocity of 64 ft/s, (the acceleration due to gravity is -16ft/sec). a. Write the quadratic equation representing this scenario when h is 0. b. Find the roots (solutions) for this ...
*Friday, October 5, 2012 at 3:34pm*

**Algebra 2**

Find f(x), if f(2b-1)=6b+2
*Friday, October 5, 2012 at 2:15pm*

**Algebra 2**

Find f(x), if f(2b-1)=6b+2
*Friday, October 5, 2012 at 1:37pm*

**college algebra**

solve x^6 - 64 = 0
*Friday, October 5, 2012 at 1:14am*

**algebra**

use the inequality -4t-8 is less than or equal to 12 a. t is greater than or equal to ? b. t + 4 is greater than or equal to ? c. t- ? is greater than or equal to 0 d. t + 10 is greater than or equal to ? e. 3t is greater than or equal to ? f. t/? is greater than or equal to -5
*Thursday, October 4, 2012 at 10:26pm*

**Algebra Word Plob..PLEASE HELP**

You have to wrap gift boxes for your club project. Each box is 4.5 inches wide, 7 inch long, and 4 inches tall. What size sheet of wrapping paper do you need to cut to cover the box? Gift wrap paper comes in sheets which are 30 inches wide and 36 inches long. How should you ...
*Thursday, October 4, 2012 at 10:22pm*

**Algebra**

You have to wrap gift boxes for your club project. Each box is 4.5 inches wide, 7 inch long, and 4 inches tall. What size sheet of wrapping paper do you need to cut to cover the box? Gift wrap paper comes in sheets which are 30 inches wide and 36 inches long. How should you ...
*Thursday, October 4, 2012 at 9:57pm*

**Algebra**

A jar contains red, blue and yellow marbles.The number of red marbles is ten more than the number of yellow marbles and the number of blue marbles is double the number of yellow marbles. If the probability of choosing a yellow marble is one-fifth , how many marbles are in the ...
*Thursday, October 4, 2012 at 9:55pm*

**Pre-Algebra **

4( x+8)+ 9x =
*Thursday, October 4, 2012 at 8:59pm*

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