Wednesday
December 7, 2016

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

Algebra
The cost of a large pizza is $7.99 plus an additional $0.99 for each topping. Tom ordered a large pizza that cost $10.96. Write and s olve an algebraic equation to find the number of toppings on the pizza.
Sunday, March 20, 2016 by Natoutou

Algebra
You had some cookies and milk for breakfast this morning. The total number of calories of your breakfast is 232. Each cookie has 25 calories and a bottle of milk has 57 calories. How many cookies did you have for breakfast?
Sunday, March 20, 2016 by Natoutou

Algebra
Jane wants to buy T - shirts at $12 each and dresses at $30 each. If Jane has a budget of 150 dollars, how many dresses can she buy if 5 T - shirts are bought?
Sunday, March 20, 2016 by Natoutou

Algebra
A building is 2ft from a 9ft fence that surrounds the property.A worker wants to wash a window in the building 13 ft from the ground. He plans to place a ladder over the fence so it rests against the building.He decides he should place the ladder 7ft from the fence for ...
Sunday, March 20, 2016 by Anonymous

mathematics-Algebra
I think of two whole numbers;the product of the average of the sum and difference of the numbers and the difference of the sum and difference of the numbers is 12.if three times the first added to the second makes up 11..find the two numbers please show workings #thanks
Sunday, March 20, 2016 by p1

algebra
using cross multiplication method solve 3x+5y=25 , 7x+6y=30
Sunday, March 20, 2016 by manikandan

Algebra
The foundation of a house is in the shape of a rectangular solid. The volume of the foundation is 2080 cubic feet. The height of the foundation is 10 feet and the width is 8 feet. What is the length of the foundation?
Sunday, March 20, 2016 by Dee365

Algebra 2
Simplify the sum. (w2 + 2w – 24 + ) / (w2 + w – 30) (All the other help I can find they add +8w and -5w) please help.
Friday, March 18, 2016 by Sandra

Pre algebra
The perimeter of a rectangle is 10 m. Twice the width is equal to one- half the length. Find the length and the width.
Friday, March 18, 2016 by Anonymous

Algebra
Four people are on one side of a bridge. All of them need to cross a bridge in order to escape from a pack of zombies. They have 17 minutes before the zombies arrive and all four people must be on the other side of the bridge. It is night and there is one flashlight. A maximum...
Thursday, March 17, 2016 by Larry

Algebra
A rectangular lap pool has a constant depth. The length of the pool is 9 times the width, and the surface area of the water is 81 square feet. What are the dimensions of the pool? Include units.
Thursday, March 17, 2016 by Jessica

Programming C++ using Data Structure.
In an academic institution, Student has its records. Each student has his/her profile such as id number, student name. The institution also keeps records of student grades in each subject. Student grades contains information subject description, school year, semester, and ...
Thursday, March 17, 2016 by Vonn

Algebra 2
Suppose $500 is deposited into an account that earns 6.5% annual interest and no more deposits or withdrawals are made.o What is balance in 1 year 1 month 29 M0nths
Wednesday, March 16, 2016 by Ibra

algebra
A garden has the shape of a right triangle with one leg 8 meters longer than the other. The hypotenuse is 8 meters less than twice the length of the shorter leg. What is the length of the shorter​ leg?
Wednesday, March 16, 2016 by Anonymous

mathematics-Algebra
3^x=9x please show workings
Wednesday, March 16, 2016 by p1

algebra
What is the GCF of 5y + 30?
Wednesday, March 16, 2016 by Irene

algebra 1
What's the GCF of 48xy and 64x^2y?
Wednesday, March 16, 2016 by Irene

algebra 1
What's the GCF of x^3y and x^7?
Wednesday, March 16, 2016 by Irene

algebra
In a movie stunt, a car is driven off a cliff and falls into the ocean 200 feet below. If the car is going 50 feet/second (horizontally) when it goes over the cliff, its horizontal position is described as x = 50 t, where t is the time in seconds. Its vertical position is ...
Wednesday, March 16, 2016 by leigh

algebra
what is the slope-intercept form of y+9=3/5(x+7)
Wednesday, March 16, 2016 by Anonymous

GEOMETRY/ALGEBRA
A balloon, with a final volume of 40 cm3, took 4 min to fill. At what rate was the balloon filled? Choose exactly two answers that are correct. A. B. 40 cm3 = 4 min • r C. 40 cm3 • r = 4 min D. r – 4 h = 14 in.
Wednesday, March 16, 2016 by DEE

Algebra
can you help me with algebra
Tuesday, March 15, 2016 by Monica

Algebra
If M<6 if m<1= 43 degrees
Tuesday, March 15, 2016 by Anonymous

Algebra
The difference between two positive numbers is 9. If four times the larger number is ten times the smaller number, what is the larger number?
Tuesday, March 15, 2016 by Amanda

Algebra 1
The problem is: a raised to the 2nd power plus 14a raised to the 5th power plus a raised to the 7th minus 16
Tuesday, March 15, 2016 by Adam

Algebra
the sum of two numbers is 38.the greater number is 8 more than the other number.find each number.use a system of linear equations to justify your answers.
Tuesday, March 15, 2016 by Faith

Algebra I
Son brought home a hand made worksheet that teacher did not go over and can't find examples anywhere. Multiply each expression by its conjugate. A. Square root of (13)-2 B. 2+3Square root (5) C. Square root(3) minus Square root(7) Thanks
Tuesday, March 15, 2016 by Mom

algebra
is this problem NO SOLUTION. Im unable to solve. x(3-x)=x-(x^2-2x+4)
Tuesday, March 15, 2016 by jill

Algebra 2
Carla’s kitchen floor is in the shape of a perfect square. Her copycat brother, Carl, wants to re-model his kitchen so that it will have the same surface area as his sister, but his kitchen will be rectangular. The length of his floor is half the length of his sister’...
Tuesday, March 15, 2016 by Claire

algebra
a class recorded the number of movies that each student watched during the summer. draw a histogram to accuratley display this data.
Monday, March 14, 2016 by alicia

Algebra
There is a circular garden in the middle of a square yard. The radius of the circle is 4x. The side length of the yard is 20. what is the area of the part of the yard that is not covered by the circle? a. 4x(5) b. 8x^2(5-pi) c. 16x(25+pi) d. 16x^2(25-pi)***
Monday, March 14, 2016 by Kaai97

Algebra
What is the GCF of the terms of 8c^3+12c^2+10c ? I am confused between 2 and 2c. Which one is it?
Monday, March 14, 2016 by Kaai97

Algebra
Find ALL triples of positive numbers c<100 that satisfy the Pythagorean Theorem.
Monday, March 14, 2016 by Katie

Algebra 2
Designer Dolls, Inc. found that the number N of dolls sold varies directly with their advertising budget A and inversely with the price P of each doll. The company sold 1,800 dolls when $34,000.00 was spent on advertising, and the price of a doll was set at $25.00. Determine ...
Monday, March 14, 2016 by Sandra

ratios/algebra
During class elections 64 students voted for candidate A .if the ratio of votes for candidate a is to the votes for candidate B was 8:5,how many votes did candidate B receive?
Monday, March 14, 2016 by chris

Algebra HELP PLEASE
A cylinder has a radius of 4x + 2 and a height of 5x — 4. Which polynomial in standard form best describes the total volume of the cylinder? A.80pix^3+144pix^2+84pix+16pi B.20pix^2+26pix+8pi **** C.80pix^3+144pix^2+84pix-16pi D.400pix^4+1040pix^3+996ix^3+416pix+64pi​...
Monday, March 14, 2016 by Cassidy

Algebra
The length of a rectangular piece of steel in a bridge is 3 meters less than double the width. The perimeter of the piece of steel is 48 meters. Find the length of the steel. Find the width. What steps or formula do I use to solve this problem.
Sunday, March 13, 2016 by Dee365

algebra
solve by elimination method to find an ordered pair. 7x-y=27 x+9y=77
Sunday, March 13, 2016 by leigh

Algebra
13. -4 + 7x + 4 = 3y Find the constant of variation. Someone help, I can't understand how to do it. None of the websites I look up have good explanations, help?
Sunday, March 13, 2016 by ThissStudent

Algebra
a certain recipe asks for ¼ of granola. how much is needed to make ¾ of a recipe?
Sunday, March 13, 2016 by Mike

Algebra
Suppose that Y varies directly with X, and Y=4 when X=16 (a) Write a direct variation equation that relates X and Y (b) Find Y when X=3
Sunday, March 13, 2016 by Anonymous

Algebra
Is .0010001... Rational?
Sunday, March 13, 2016 by Sally

ALGEBRA
DETERMINE WHETHER (6,-2) IS A SOLUTION OF Y=-2/3X
Sunday, March 13, 2016 by Anonymous

Algebra
There are 14 animals in the field. Some are cows and some are geese. There are 42 legs in all. How many of each animal are in the field? 14=c+g 42=? Help me figure out the rest of the equation
Saturday, March 12, 2016 by Aaliyah

algebra
The length of a rectangle is 8 feet more than its width. If the width is increased by 4 feet and the length is decreased by 5 feet, the area will remain the same. Find the dimensions of the original rectangle.
Saturday, March 12, 2016 by Child

Algebra
Since 2000, world population in millions closely fits the exponential function y=6084e^0.0120x (everything after the ^ is an exponent) where x is the number of years since 2000. Answer the following questions: 1.The world population was about 6853 million (or 6.853 billion) in...
Saturday, March 12, 2016 by Brittini

Algebra
If the area of a triangle is 110 square units and the base is 2x+12 and the height is x+5, what is the numerical base and height?
Saturday, March 12, 2016 by Ashley

Algebra
1.An experiment consists of rolling two dice and the sum of faces is observed. How many observations are there (i.e. the possible outcomes)? 2. A bowl contains 10 red balls and 8 blue balls. If five balls are to be drawn, determine the number of ways that you can draw five ...
Saturday, March 12, 2016 by Miguel

Algebra
You plan to build four identical rectangular sheep pens in a row. Each adjacent pair of pens share a fence between them. You have a total of 368 feet of fence to use. Find the dimension of each pen such that you can enclose the maximum area. 5w+8L=368 5w-5w+8L=368-5w 8L/8=368/...
Saturday, March 12, 2016 by Barb

Algebra
One number is 10 less than twice a second number. Find a pair of such numbers so that their product is as small as possible. I came up with 15 and 5 and those are incorrect
Friday, March 11, 2016 by Barb

Algebra
Suppose that Y varies directly with X, and Y=16 when X=10. (a) Write a direct equation that relates X and Y Equation: (b) Find Y when X=15 Y=
Friday, March 11, 2016 by Anonymous

Algebra
The force needed to keep a car from skidding on a curve varies inversely as the radius of the curve and jointly as the weight of the car and the square of the car's speed.Suppose that 400 pounds of force keeps a 1600-pound car from skidding on a curve of radius 800ft at ...
Friday, March 11, 2016 by Lisa

Algebra
Suppose that the maximum weight that a certain type of rectangular beam can support varies inversely as its length and jointly as its width and the square of its height. Suppose also that a beam 6 inches wide, 2 inches high, and 12 feet long can support a maximum of 14 tons. ...
Friday, March 11, 2016 by Marie

Algebra
factor a^2+10a+24 t^2+4t-45
Friday, March 11, 2016 by Will

Algebra 2
the gym charges 180$ for a yearly membership. there are currently 1000 members. for every 5$ increase the gym will lose 10 members. how much should the gym charge to maximize its revenue?
Friday, March 11, 2016 by Jake

Algebra 2
A water sample in a laboratory initially contains 6000 bacteria. The organisms reproduce at a rate of 10% per hour. Find the function that corresponds to this situation. Then predict how long it will take for the population of bacteria to double in number. Round your answer to...
Thursday, March 10, 2016 by Sam Joseph

Algebra 2
Yuki wants to make a reduced-size of a drawing. The original drawing is 14 inches long.Yuki's copier can only reduce by 75% . Find the length of a copy after Yuki reduced it 4 times at 75% each time. Round your answer to the nearest hundredth of an inch.
Thursday, March 10, 2016 by Sam Joseph

Algebra 2
G(x)=1/2(3^x-1)-7 What are the domain and range of the function?
Thursday, March 10, 2016 by Sam Luke

Algebra 2 honors
A water sample in a laboratory initially contains 6000 bacteria. The organisms reproduced at a rate of 10% per hour. Find the function that corresponds to this situation. Then predict how long it will take for the population of bacteria to double in number. Round your answer ...
Thursday, March 10, 2016 by Treal Jacob

Algebra 2 honors
Yuki wants to make a reduced-size copy of a drawing. The original drawing is 14inches long. Yuki's copier can only reduce by 75%. Find the length of a copy after Yuki reduces it 4 times at 75% each time. Round your answer to the nearest hundredth of an inch.
Thursday, March 10, 2016 by David Jamil

Linear Algebra
Find the 3x4 matrix associated with the derivative transformation D:P3→P2 with respect to B = { 1, x, x2, x3} and B' = {1, x, x2}.
Thursday, March 10, 2016 by Peter

Algebra 1
3 - X over 3 > -4 Solve for inequality . Thanks..
Thursday, March 10, 2016 by Ell

Algebra 1
30 greater than or equal to -30-6x Solve each inequality .
Thursday, March 10, 2016 by Ell

Algebra
Suppose that the maximum weight that a certain type of rectangular beam can support varies inversely as its length and jointly as its width and the square of its height. Suppose also that a beam 6 inches wide, 2 inches high, and 12 feet long can support a maximum of 14 tons. ...
Thursday, March 10, 2016 by Marie

Algebra 2
How do I express a number like 27 ^2/3 as a rational number in its simplest form? 31 25.6 123 16 I keep getting 83/3 and that = 27.66
Thursday, March 10, 2016 by Sandra

Algebra
Which of the following equations represent nonlinear functions? A. Y=5-2/3x B. y=x^2+7 C. y=1.5x-0.25 D. Y=3 F. Y= 10/x+20 f and b?
Thursday, March 10, 2016 by Katlynn

Algebra
Write an equation and solve. If 6 is added to twice a number,the result is 20.What are the numbers?
Thursday, March 10, 2016 by Asia

algebra
Since the purpose of an ice cube is to keep a drink cold, is it better for an ice cube to have a high volume or a low volume? Why? plz help f !!!
Thursday, March 10, 2016 by chil

Algebra 1
Algebra 1 word problems help please 1. Madison is making a vinaigrette for her catering service using olive oil that costs 50 cents per ounce and apple cider vinegar that costs 35 cents an ounce.The ideal batch of vinaigrette has 25% vinegar.If she has already combined 3 cups ...
Wednesday, March 9, 2016 by Anonymous

Algebra
Factor 10w squared minus 19 minus 15
Wednesday, March 9, 2016 by Will

Algebra
Factor 3g squared - 7g +2
Wednesday, March 9, 2016 by Will

Algebra
On a journey of 600 km, a train was delayed 1 hour and 30 min after having covered 1/4 of the way. To arrive on time at the destination, the engine driver had to increase the speed by 15 km/hour. How long did the train travel for?
Wednesday, March 9, 2016 by Anonymous

Algebra
In the middle of its journey from station A to station B, a train was held up for 10 minutes. In order to arrive at City B on schedule, the engine driver had to increase the speed of the train by 12 km/hour. Find the original speed of the train before it was held up, if it is ...
Wednesday, March 9, 2016 by Anonymous

algebra
The length of a rectangle is two more than four times its width. Its perimeter is 54 inches. Find its dimensions​ length and​ width.
Wednesday, March 9, 2016 by Mark

algebra
A family is building a circular fountain in the backyard the yard is rectangular and measures 6x by 7x and the fountain is going to be circular with a radius of 2x once the fountain is built what will be the area of the remaining yard?
Wednesday, March 9, 2016 by hannah

Algebra
Walter is making an open-top box. The length is 6 inches greater than the width, and the height is 2 inches. The area of the rectangular sheet of material that will be folded to make the box is 320 square inches. What is the width of the box?
Wednesday, March 9, 2016 by Bridge

algebra
12000 was invested in 2 accounts, one earning 12% simple interest and the other earning 8% simple interest. if the total interest at the end of 1yr was $1240, how much was invested in each account?
Wednesday, March 9, 2016 by cee jay

Pre-algebra
Which expressions are equal to 120 Multiple chose 1. 5! 2. 6! 3. 6p3 4. 12p10 I think the answers are 5! and 6p3
Wednesday, March 9, 2016 by Gloria

algebra
Task 1 You want to start a summer business to earn money. What will you do? You have to consider how much money you can afford to invest in this business, how much it will cost you to make each item, and how much you’re going to charge for each item. Research something ...
Wednesday, March 9, 2016 by boogers1001

algebra
How do you find the approximate and exact solutions for square root of 45
Tuesday, March 8, 2016 by rian

Intermediate Algebra
I am rowing on a river between two cities that are 19 miles apart. When going downstream, I make the journey in .76 hour(s). When I return upstream, it takes me 2.11 hour(s). What is the current of the river? what is the speed I would row in still water?
Tuesday, March 8, 2016 by Jaunice

Algebra
Solve the following equation for x. 5x + 11 = 49 x =
Tuesday, March 8, 2016 by Stevie

Algebra
solve the following inequality. write the solution in interval notation and graph it. [2y + 4] < 10 ( the [ ] are in place of absolute values , i don't have them on my keyboard) Thanks so much!
Tuesday, March 8, 2016 by Fairy

algebra
Two planes left simultaneously from the same airport and headed in the same direction towards another airport 1800 km away. The speed of one of the planes was 100 km/hour slower than the speed of the other plane, and so it arrived at its destination 36 minutes after the faster...
Tuesday, March 8, 2016 by Anonymous

Algebra
Boyle's Law says that the volume of a gas varies inversely with the pressure. When the volume of a certain gas is 5 liters, the pressure is 158 kPa (kilopascals). What is the volume when the pressure is 395 kPa?
Tuesday, March 8, 2016 by Anonymous

Algebra 2 b
Jane is going to fence in her back yard. She has purchased 100 feet of fencing and knows that she wants to fence in a rectangular area where one side will be the back of her house. She knows her house is 30 feet across the back. Which of the following is the equation that Jane...
Tuesday, March 8, 2016 by Anonymous

Algebra
The time it takes to cover the distance between two cities by car varies inversely with the speed of the car. The trip takes 15 hours for a car moving at 54 mph. What is the speed of a car that makes the trip in 27 hours?
Tuesday, March 8, 2016 by Caleb

Algebra ASAP!
Radio signals travel at a rate of 3 x 10^8 meters per second. How many seconds will it take for a radio signal to travel from a satellite to the surface of the Earth if the satellite is orbiting at a height of 9.6 x 10^6. Can someone show me how to do this so that I can not ...
Tuesday, March 8, 2016 by Astral Tellurian

algebra
simplify the following expression fully. I can't get some functions to work. Please read in the parenthesis. These are stacked. 1 + 1 (each 1 is underlined)) a b (a to b is underlined) a _ b (a and b is each underlined) b a (the minus sign is correct) Thanks
Tuesday, March 8, 2016 by Fairy

algebra 1 question please help
You use a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your data set is -0.015. How confident can you be that your predicted value will be reasonably close to the actual value?
Tuesday, March 8, 2016 by Anonymous

Algebra 1
Given the data set for the length of time a person has been jogging and the person's speed, hypothesize a relationship between the variables. a) I would expect the data to be positively correlated b) I would expect the data to be negatively correlated** c) I would expect ...
Tuesday, March 8, 2016 by Please help bobpursley

Math Algebra 1
1. A company is deciding whether or not to hire a new worker. The company must pay the worker hourly and cover a daily cost for insurance. The cost to pay an hourly worker for one day is represented by the function y = 8x + 25, where x is hours. What is the y-intercept, and ...
Tuesday, March 8, 2016 by Please help; Elena

Algebra 1
1. A company is deciding whether or not to hire a new worker. The company must pay the worker hourly and cover a daily cost for insurance. The cost to pay an hourly worker for one day is represented by the function y = 8x + 25, where x is hours. What is the y-intercept, and ...
Tuesday, March 8, 2016 by Katherine

Algebra
what is the sum of the interior angles of a quadrilateral? 720 540 360*** 180 Please Check my answers.
Tuesday, March 8, 2016 by Anonymous

algebra
For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation. x y 8 28 16 56 20 70 (1 point) yes; y = 5x yes; y = x + 20 yes; y = 3.5x no; y does not vary directly with x 2. For the data in the table, does y vary directly with...
Tuesday, March 8, 2016 by HELP

algebra
Does the table represent an exponential function? x | 1 | 2 | 3 | 4 y | -2 | -12 | -72 | -432
Tuesday, March 8, 2016 by james

algebra
h=-16t^2+48t describes the rocket's height,h, in feet, from the ground, t seconds after it was launched. A. What is the height of the rocket after 2 seconds. B. After how long will it take the rocket to return to the ground.
Tuesday, March 8, 2016 by LaVern

math
algebra grade 8 1.(2x^2-4)(2x^2+4) 2.(5yz+6x^2)(5yz-6x^2) 3.(x^2+y^2)(x^2-y^2)
Tuesday, March 8, 2016 by sim

Algebra 2
Q: What represents the sum of a geometric series with 8 terms whose first term is 3 and common ratio is 4. A: 65,535 Is my answer right? I wasn't sure when adding up the terms versus using Sigma notation.
Monday, March 7, 2016 by Bill

Algebra
Phil is twice as old as James, Peter is 3 years younger than Phil, the sum of their ages is 32. Find their individual ages
Monday, March 7, 2016 by Phylliep

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Homework Help: Math