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July 23, 2016

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

Algebra
Think we have it but want to make sure Write the standard form of the equation of each line using integers. 1. Y=-8/5x-4 Answer 8x+5y=-20 2. 4y=12+3x Answer -3x+4y=12 Thanks
Sunday, November 15, 2015 by Mom

Algebra
Divide and reduce to lowest terms wherever possible. 105/ 5+1/4
Sunday, November 15, 2015 by John

algebra
Chen's motorgoat took 3 hr to make a treip downstream with a 6-mph current. The return trip against the same current took 5 hr. Find the speed of the boat in still water.
Saturday, November 14, 2015 by Anonymous

further algebra
A tennis ball dropped from a height 30m bounces 40% of the height from which it felt on its bounce. what is the vertical distance it travels before coming to rest.
Saturday, November 14, 2015 by Adam Campaore

Algebra
A certain number is three times the sum of its digits,if 45 is added to the digit it is reverse. Find the digit. Let the two digit number be xy(10x and y) xy=3(10x+y) 3(10x+y)+45=10y+x how to solve this sum in addition and subtraction method i dont know from here
Saturday, November 14, 2015 by Nathya

Algebra
1.Write an equation in slope- intercept form of the line that passes through the given point and is parallel to the graph of the given equation. (2,-2);y=-x-2 A.y=-2x*** B.y=2x C.y=1/2x D.y=-x 2.Write an equation in slope- intercept form of the line that passes through the ...
Saturday, November 14, 2015 by GummyBears

algebra
Paving cost is $10.30 per square yard. find the total cost of paving the shaded area in figure 27-21. Round the answers to nearest ten dollars. 170'-0" Radius 92'0 is the degrees 256'-0" is the shaded area The sum total is 14780 please help
Friday, November 13, 2015 by gabriel

Algebra 2
Solve system by substitution or elimination x+4y=13 2x+3y=6
Friday, November 13, 2015 by Danny

algebra 1
solve for x /x\-5=7 (slashes are straight up and down)
Friday, November 13, 2015 by mclovin mitchell

Physics
An airplane is circling an airport by traveling a horizontal circular path at a speed of 400 km/h. The bank angle of the wings is 20 degrees. What is the radius of the circular path the plane is flying? I honestly do not know where to start this. And it is an algebra-based ...
Friday, November 13, 2015 by Michael

Algebra
How do I perform the indicated operation and, if possible, simplify. And show all of my work? 7/12 + (-3/5)
Friday, November 13, 2015 by Georgiana

algebra
A very old vending machine accepts only nickels (n) and dimes (d). Candy costs up to $0.50, but sometimes the machine will dispense candy without any coins being inserted into the machine. Which inequality shows all of the ways to obtain a candy bar from the machine?
Friday, November 13, 2015 by Tae

algebra with pizzazz
-4/3 is empty Gloves 7/3 is empty on 0 is empty
Friday, November 13, 2015 by Np

algebra
a tennis ball dropped from a height of 30m bounces 40% of the height from which it fell on each bounce. what is the vertical distance it travels before coming to rest?
Friday, November 13, 2015 by Wumbei sammed

Algebra
Mai has 3 times as many teddy bears as tony. Altogether they have 24 teddy bears. If let tony has x teddy bears, make an equation to find the number of bears that Mai has?
Friday, November 13, 2015 by Alana

college algebra
The rodent population in a city is currently estimated at 70,000 and is growing according to the Malthusian model. If it is expected to double every 3 years, when will the population reach one million? (Round your answer to one decimal place.)
Thursday, November 12, 2015 by Taylor

Algebra 2
Simplify the following exponents. (3x^ay^bz^c)(-y^fz^g)
Thursday, November 12, 2015 by Tom

Algebra 2
The lenths of the side of a triangle are x+4 units, x units, and x+1 units. Express the perimeter of the triangle as a polynomial in standard form.
Thursday, November 12, 2015 by Tanya

Algebra 2
Simplify the following exponents. (3m^2n^7/m)^5
Thursday, November 12, 2015 by Tom

Algebra
x+2y=6 2x+4y=32 how would i graph them and what would be my points?
Thursday, November 12, 2015 by Alea

algebra pls help
Solve for x. −ax + 3b > 5 x > the quantity 3 times b minus 5 all over a x > the quantity 5 minus 3 times b all over negative a x < the quantity 3 times b plus 5 all over a x < the quantity negative 3 times b plus 5 all over negative a
Thursday, November 12, 2015 by Oscar

Algebra HELP!
how would I solve this on a equation to graph and what would my slope be? -3x-2y=18 and 3x-y=0
Thursday, November 12, 2015 by Alea

Algebra
how would I solve this on a equation to graph and what would my slope be? -3x-2y=18 and 3x-y=0
Thursday, November 12, 2015 by Alea

Algebra
Write two different inequalities that you can solve by adding 2 to each side and then dividing each side by -12.
Thursday, November 12, 2015 by Zero

Algebra 2
A share of ABC stock was worth $60 in 2005 and only worth $45 in 2010. Find the multiplier and the percent decrease.
Thursday, November 12, 2015 by Tom

Algebra Probability PLEASE HELP
You have a 5-question multiple-choice test. Each question has four choices. You don’t know any of the answers. What is the experimental probability that you will guess exactly three out of five questions correctly?
Thursday, November 12, 2015 by LittleMissSunshine

ALGEBRA
Name the binomial you can multiply by (x + 9) to get the product x^2 + 5x - 36. A. 4 - x B. x + 6 C. x - 4 D. x - 6
Thursday, November 12, 2015 by thanksgiving

algebra
Name the binomial you can multiply by (x + 9) to get the product x^2 + 5x - 36. A. 4 - x B. x + 6 C. x - 4 D. x - 6
Thursday, November 12, 2015 by thanksgiving

Math
Help me! T~T How do you subtract with algebra?
Thursday, November 12, 2015 by Audrey

algebra 1
Which of the following options results in a graph that shows exponential growth? a) f(x) = 0.4 (0.2) ^x b) f(x) = 4(0.98)^x c) f(x) = 0.7(5)^x d) f(x) = 5(4) ^-x I think it is c, can you please help?
Thursday, November 12, 2015 by Please help

8th grade algebra
If 1/3 is equivalent to 33 1/3%, what percent is equivalent to 2/3? A: 33 2/3% B: 150% C: 66 2/3% D: 65% I have no idea... Can someone explain? :\
Thursday, November 12, 2015 by Angel <3

Algebra
What percent of 25 is 10? A)10=x•25;40% ** B)10=x•25;250% C)25=x•10;4% D)25=x•10;250% The sales tax is 6.9% A.Find the tax paid for a pair of boots with a list price of $128. B.What is the total cost of the pair of boots. 1)$8.83; $128.88 2)$8.83; $136.83 3...
Thursday, November 12, 2015 by ALGEBRA HELP

algebra
A grocer wants to mix nuts which sell for Rs 40 per kilo with nuts which sell Rs 90 per kilo in order to make a mixture which could sell for Rs 70 per kilo.How many kilos of each should be mixed to get a mixture of 630 kilos?
Thursday, November 12, 2015 by Asadullah khan

Algebra
A 42 ft guy wire reaches from the top of a pole to a point on the ground 15 ft. from the pole. Find how high up the pole does the guy wire reach?
Thursday, November 12, 2015 by matt

algebra
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. x+3y+6z=6 y-4z=0
Thursday, November 12, 2015 by steph

Algebra 1 grade 9
After the math contest basil noticed that there were four extra-large pizzas that were left untouched in addition another three slices of pizza we're on even if there were a total 51 slices of pizza left how many slices of pizza does an extra large pizza have?
Wednesday, November 11, 2015 by Jennifer

Algebra
Find the maximum revenue for the revenue function R(x) = 383x − 0.6x2.
Wednesday, November 11, 2015 by Jamie

Algebra
If the demand function for a commodity is given by the equation p2 + 16q = 1200 and the supply function is given by the equation 300 − p2 + 6q = 0, find the equilibrium quantity and equilibrium price.
Wednesday, November 11, 2015 by Jamie

Algebra
If a company has total costs C(x) = 20,000 + 25x + 0.2x2 and total revenues given by R(x) = 475x − 0.8x2, find the break-even points.
Wednesday, November 11, 2015 by Jamie

Algebra
In your last 23 basketball games, you attempted 101 free throws and made 66. Find the experimental probability that you make a free throw. Write the probability as a percent, to the nearest tenth of a percent. A. 65.3% B. 69.8% C. 69.7% D. 65.7%
Wednesday, November 11, 2015 by ((((freehugs)))))

algebra
In your last 23 basketball games, you attempted 101 free throws and made 66. Find the experimental probability that you make a free throw. Write the probability as a percent, to the nearest tenth of a percent. A. 65.3% B. 69.8% C. 69.7% D. 65.7%
Wednesday, November 11, 2015 by ((((freehugs)))))

Algebra
Use the table. Style: Color: regular light blue loose fit indigo boot cut washed slim fit black blue a.How many possible pairs of jeans are there if each pair has one style and one color? b.Suppose you have one pair of jeans of each possible style and color in the table. What ...
Wednesday, November 11, 2015 by POPPIN'

Algebra Math
The length of a rectangle is two more than three times its width. The perimeter of the rectangle is 116. Determine the length and width of the rectangle.
Wednesday, November 11, 2015 by Reid

ALGEBRA
wo quadratic functions are shown. Function 1: f(x) = 4x2 + 8x + 1 Function 2: x -2 -1 0 1 g(x) 2 0 2 8 Which function has the least minimum value and what are its coordinates? Function 1 has the least minimum value and its coordinates are (−1, −3). Function 1 has ...
Wednesday, November 11, 2015 by nessa

Algebra
How do you find the missing side length of a right angle triangle with the height of 8ft and the base of 6 feet?
Wednesday, November 11, 2015 by CarpeDiem

Algebra
You cut square corners with side lengths that are whole numbers from a piece of cardboard with dimensions 20 inches by 30 inches. You then fold the cardboard to create a box with no lid. Which of the following dimensions will give you the greatest volume? A. 12 in. by 22 in. ...
Wednesday, November 11, 2015 by CarpeDiem

Algebra
Find the slope of the line through the pair of points. A(2, –3), P(2, 9) A. 0 B. 2/3 C. -1/3 D. undefined
Wednesday, November 11, 2015 by CarpeDiem

algebra
The equation a = 640s gives the relationship between s square miles and a acres. Pam owns 7.5 square miles of farmland. How many acres does she own? A. 480 acres B. 11.72 acres C. 4,800 acres D. 1.17 acres
Wednesday, November 11, 2015 by PhantomGirl

Algebra(please help ASAP!)
What is the slope? (1, 7), (10, 1) A. 3/2 B. -2/3 C. -3/2 D. 2/3
Wednesday, November 11, 2015 by YourSecretAdmirer

math-linear algebra
Determine which of the following mappings are linear mappings. A. The mapping L defined by L(x_1, x_2 ) = (4x_1- 2x_2, 3 |x_2|). B. The mapping L defined by L(x_1, x_2 ) = (2x_1-3x_2, x_1+4, 5x_2). C. The mapping L defined by L(x_1, x_2, x_3 ) =(x_1, 0 , x_3). D. The mapping L...
Wednesday, November 11, 2015 by John

math-linear algebra
Determine the standard matrix A of the linear mapping L:R^2-->R^2 that rotates any vector through an angle of 150 degrees in the clockwise direction.
Wednesday, November 11, 2015 by John

math-linear algebra
Determine the standard matrix D of the linear mapping G: R^2--R^2 that first rotates points clockwise through pi/6 radians and then reflects points through the line x_2=x_1
Wednesday, November 11, 2015 by John

Algebra (help please!)
Suppose 3s represents an even integer. What polynomial represents the product of 3s, the even integer that comes just before 3s, and the even integer that comes just after 3s? A. 27s^3 + 12s B. 27s^3 - 3s C. 27s^3 - 12s D. 3s^3 - 12s My calculations are telling me C, but I'...
Wednesday, November 11, 2015 by Damsel-in-Distress

Algebra(please help ASAP!)
The floor of a rectangular room will be tiled with square tiles that measure 3 inches on each side. The room is 109 inches long and 103 inches wide. How many tiles, including parts of tiles, are needed to complete the job? A. 1,248 tiles B. 1,247 tiles C. 1,224 tiles D. 1,295 ...
Wednesday, November 11, 2015 by Jackie

Algebra(please help ASAP!)
This is a little difficult... Graph the Function y=3 less than the absolute value of x+2 Obviously you cannot show me this on a graph, but I just need help with solving the equation... Thanks!!!
Wednesday, November 11, 2015 by Jackie

Algebra
The floor of a rectangular room will be tiled with square tiles that measure 3 inches on each side. The room is 109 inches long and 103 inches wide. How many tiles, including parts of tiles, are needed to complete the job? A. 1,248 tiles B. 1,247 tiles C. 1,224 tiles D. 1,295 ...
Wednesday, November 11, 2015 by Jackie

Algebra
Evaluate the polynomial 6x - y for x = - 3 and y = 2. A. 15 B. –20 C. 4 D. –16 I think it is b...am I right?
Wednesday, November 11, 2015 by Alicia

Algebra
60 decreased by the quotient of a number and 4. I am reading it as: n-4/60 Am I correct?
Wednesday, November 11, 2015 by Ryan

Algebra
I'd like to know if I am right... A rectangular box is twice as long as it is wide. The height of the box is 3 feet less than the width. If the box is x feet wide, what polynomial represents its volume in cubic feet? A. 4x - 3 B. 2x^3 + 6x^2 C. 2x^2 - 6x D. 2x^3 - 6x^2 Am ...
Wednesday, November 11, 2015 by Alicia

Algebra
Is this equation right for the scenario? Jacob has a total of 24 marbles. He had 8 blues marbles and 4 red. How many more does he need to equal 24? 4w+8=24 4w+8-8=24-8 4w=16 4w/4=16/4 W=4
Wednesday, November 11, 2015 by Tiwan

algebra
9/16 / 7/10 divide. write the answer in simplest form.
Wednesday, November 11, 2015 by May

Newburgh
Algebra
Tuesday, November 10, 2015 by Dan

algebra
suppose you have 60$ ro buy a shrimp and chicken wings for a party. shrimp costs $10/lb and wings cost$6/lb. write a linear equation that could be used to determone the number of pounds of each food that can be purchased with 60$
Tuesday, November 10, 2015 by chad

Algebra
Two beakers 108 grams including content
Tuesday, November 10, 2015 by Anonymous

Algebra 2
Did I solve these right? 1. f(x)= -3x + 1 g(x)= -4x^2 + x + 2 Find g(f(x) ) -4(-3x+1)^2+(-3x+1)+2 -4(-3x+1)^2-3x+1+2 3-3x-4(-3x+1)^2 3-3x-4+24x-36x^2 =21x-36^2-1 2.f(x)= -2x + 1 g(x)= -3x^2 -x -1 Find (g /f)(x) -3x^2-x-1/-2x+1 3. f(x)=-x +2 g(x)= -4x2 + x + 5 Find (f o g)(x) f...
Tuesday, November 10, 2015 by Holly

Algebra 2
Did I answer these correctly? 1.f(x) = 2x + 3 g(x)= 2x^2 + 2x Find f(g(x) ) 2(2x^2+2x)+3 =4x(x+1)+3 = 4x^2+4x+3 2. f(x) = 5x + 3 g(x) = 2x^2-2x + 2 Find (fg(x) ) (5x+3)(2x^2-2x+2) 2(5x+3)(x^2-x+1) 10x^3-4x^2+4x+6 3.f(x)=3x g(x)= -2x^2 -2x Find (f - g)(x) 3x-(-2x^2-2x) =3x+2x^2...
Tuesday, November 10, 2015 by Jax

Algebra
I need to know if I am correct... Ques)The ticket office at Orchestra Center estimates that if it charges x dollars for box seats for a concert, it will sell 50 - x box seats. The function S = 50x - x2 gives the estimated income from the sale of box seats. Graph the function, ...
Tuesday, November 10, 2015 by LizzyLiz

Unit 1
Algebra: two trains leave Chicago at the same time one traveling east and the other traveling west the eastbound train travels at 50 miles per hour and the westbound train travels at 40 miles per hour let t represent the amount of time since their departure
Tuesday, November 10, 2015 by Mercy brown

algebra
I have twice as many nickels as quarters. If I have $1.75 in total, how many of each do I have?
Tuesday, November 10, 2015 by Irene Wu

Algebra 2
Am I correct in these problems? 1. f(x)= 2x + 3 g(x) = 2x^2 + 2x Find f(g(x)) 2(2x^2+2x)+3 =4x(x+1)+3 2. f(x) = 5x + 3 g(x) = 2x^2 -2x + 2 Find (fg(x)) (5x+3)(2x^2-2x+2) 2(5x+3)(x2-x+1)
Tuesday, November 10, 2015 by Ernesto

Algebra
A rectangular box is x feet long and x feet wide. The volume of the box is (4x^8 + 3x^6) cubic feet. What polynomial represents the height of the box in feet? A. 4x + 3 B. 4x^6 + 3x^4 C. 4x^8 + 3x^6 D. 4x^7 + 3x^5 Please Help!!
Tuesday, November 10, 2015 by LizzyLiz

Algebra 2
Did I solve these problems correctly? 1. f(x)=-3x + 2 g(x)=3x^2 -x + 2 Find (f + g)(x) -3x+2+(3x^2-x+2) =3x^2-3x-x+4 =3x^2-4x-4 2. f(x)=x -1 g(x)=2x^2 -2x -5 Find g(f(x) ) 2x^2 -2x -5(x-1) =2x^2 -2x -5x+5 =2x^2 -7x+5 3. f(x)=3x + 2 g(x)= -2x2 -3x + 5 Find g(f(x) ) -2x^2-3x+5(...
Tuesday, November 10, 2015 by Jamie

Math (algebra)
Multiply (3x – 7)(3x – 5) A. 9x^2 + 6x + 35 B. 9x^2 + 36x + 35 C. 9x^2 – 36x – 35 D. 9x^2 – 36x + 35 I said it was letter A, but I got it wrong...please help
Tuesday, November 10, 2015 by Beth

pre algebra
molly paid 8% in sales tax on her holophone,a phone that shows the person you're talking to in 3D. if molly paid $416 in sales tax on the phone, what was its pre-tax price?
Tuesday, November 10, 2015 by misty

algebra
Josie rented a car for one day from a company that charges $30 per day plus $0.20 per mile. Write a function to help Josie calculate her bill
Tuesday, November 10, 2015 by amber

College Algebra
The winning candidate for president of the freshman class received 2988 votes. If that was 150 more than half the votes cast, how many freshmen voted?
Tuesday, November 10, 2015 by Hey

pre algebra
in a math class with 31 students 27 earned a passing grade in a biology class with 21 students 17 earned a passing grade... what fraction of the math students earned a passing grade
Tuesday, November 10, 2015 by tiawannnia

Algebra
The length of a rectangle is three times its width. If the area of the rectangle is 108 yd^2, find its perimeter.
Monday, November 9, 2015 by Anonymous

algebra
the sum of two numbers is 48 and the difference is 22. What are the numbers?
Monday, November 9, 2015 by bubba

Algebra
Write an algebraic expression for the following: the quotient of a number and 0.76, increased by 6.5 the product of a number cubed and the sum of 57.6 and 3.42
Monday, November 9, 2015 by Anonymous

Algebra 1
Eight times the sum of 11and a number is 123
Monday, November 9, 2015 by Jessica

algebra
A recipe calls for 4 cups of sugar to make 4 dozen cookies. Use the proportion to calculate how much sugar is needed to make 8 dozen cookies. A 2 cups B 8 cups c 8..5 cups D 12 cups. Is it 8 cups of sugar?
Monday, November 9, 2015 by shirley

Algebra
The table shows the relationship between the number of players on a team and the minutes each player gets to play Players Minutes 7 35 8 30 9 25 10 20 Is the relationship a function that is decreasing or increasing; is the relationship a functions that is linear or nonlinear ...
Monday, November 9, 2015 by BUBBLES

algebra 1
rene needs to determine the equation of a line passing through the point (-1,7) that is parallel to y=-3x-4 a. y=-3x+7 b. y=-3x+4 c. y=3x-7 d. y=3x-4
Monday, November 9, 2015 by kim

pythagorean triple
Pre-algebra which set represents a pythagorean triple? a. 60,70,100 b. 18,24,30 c. 10,14,17 d. 10,20,30
Monday, November 9, 2015 by ak

math
Pre-algebra which set represents a pythagorean triple? a. 60,70,100 b. 18,24,30 c. 10,14,17 d. 10,20,30
Monday, November 9, 2015 by ak

algebra
His job pays a starting salary of $32,000 with a 5% raise at the end of each year. Give his salaries for the first 5 years he works.
Monday, November 9, 2015 by o

ALGEBRA
bean plants grow rapidly. a bean plant is 16 inches tall. Tomorrow it will be 24 inches tall, the next day it will be 32 inches tall and on the next day it will be 40 inches tall. Write a rule to represent the heights of the bean plant as an arithmetic sequence. how tall will ...
Monday, November 9, 2015 by BUBBLES

algebra
if 22.5 L of nitrogen at .984 atm are compressed to .953 atm at constant temperature what is the new volume
Monday, November 9, 2015 by four

Simple algebra/Physics problem
A proton, moving with a velocity of vi, collides elastically with another proton that is initially at rest. Assuming that after the collision the speed of the initially moving proton is 2.90 times the speed of the proton initially at rest, find the following. (a) the speed of ...
Sunday, November 8, 2015 by PersonWhoNeedsHelp

Algebra
One type of anyifreeze is 40% glycol, and another type of antifreeze is 60% glycol. How much of each kind should be used to make 100 gallons of antifreeze that is 48% glycol? How do i show my work? Thanks
Sunday, November 8, 2015 by Gabe

Algebra 2
Jack is selling wristbands and headbands to earn money for camp. He earns $2 for each wristband and $3 for each headband. He wants to earn at least $50. He needs to sell at least 5 wristbands. Which system of inequalities is shown in the graph of the solution below? • 2x...
Sunday, November 8, 2015 by Sandra

Algebra 2
Give the domain of the function. g(x)= x^3-1 I think the domain is all real numbers. Am I wrong? If so why?
Sunday, November 8, 2015 by Jojo

Algebra
How do I solve: Translate "y more than 4 is -36". Then solve the problem. Hope someone could help me out with this annoying question!
Sunday, November 8, 2015 by Bob

8th grade pre algebra line segments
It's asking me to use a grid and lengths of line segments to give a geometric argument but I'm not sure what that means or looks like.
Sunday, November 8, 2015 by Alexandria

Algebra 1
For the data in the table, does y vary directly with x? If it does choose an equation for the direct variation. x|y 8|11 16|22 24|33 a. yes; y=2.75x b. yes; y=0.6875x c. yes; y= 1.375x d. no; y does not vary directly with x i think its d, but i'm not sure. please help. thx!
Saturday, November 7, 2015 by basketball&batman

Algebra II
Write an equation for the following transformation of y = x: a vertical compression by a factor of 1/2. Options: y = -1/2x y = 1/2x y = 2x y = -2x Please help me :)
Saturday, November 7, 2015 by Katarina

Algebra
Scatter plots and least square lines. The number of home runs hit by a player. 1990 1991 92 93 94 95 96 97 98 99 39. 22. 42 9. 9. 39 52 58 70 65 Find the equation of the least square line? Y=4.9x+18.5 Find the correlation, r, to the nearest hundredth? 0.68 Use the least square...
Saturday, November 7, 2015 by dad

Algebra
Greg is paid double- time for each hour worked over 45 hours in a week. Last week he worked 53 hours and earned $732. What is his normal hourly rate?
Saturday, November 7, 2015 by Antonio

Algebra
The variable x in the expression 3+2x is replaced in succession by 1,2,3 and 4. Find the sum of the resulting numbers. Thank you for your time and please help! I am very confused.
Saturday, November 7, 2015 by Alana

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Homework Help: Math