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September 27, 2016

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

intermediate Algebra
A sink can be filled by a pipe in 2 minutes but it takes 4 minutes to drain a full sink. if both the pipe and the drain are open, how long will it take to fill the sink?
Thursday, July 17, 2014 by Casandra

Algebra
The length of a side of a rectangle is 2 units less than a number, and the width is 4 units more than the length. Which of the following expressions represents the area of the rectangle, in square units? A. x^2+2x+4 B. x^2-2x+8 C. x^2-4 D. x^2+4
Wednesday, July 16, 2014 by Emma

math
In a certain class there are 12 boys and 18 girls. If the class average for an algebra exam is 90 and the boys' average score is 87, what is the girls' average score?
Wednesday, July 16, 2014 by John

algebra
A movie theater has 400 seats. Tickets at the theater cost $8 for students, $10 for adults, and $7 for senior citizens. On a night when all the seats were sold, the theater made $3,535 from ticket sales. If the number of adult tickets sold was 10 less than the number of ...
Wednesday, July 16, 2014 by Anonymous

algebra
In their last basketball game, Becky scored twice as many points as Min. Together, they scored 42 points. How many points did Becky score?
Wednesday, July 16, 2014 by Anonymous

Algebra
You are walking away from home at a constant velocity of 5 km per hour. The first landmark you see is your favorite fountain which happens to be 2 km from your house. Which of the following sequences describes the distances you cover at internals of one hour starting when you ...
Tuesday, July 15, 2014 by Jennifer

Algebra
Two different radioactive isotopes decay to 10% of their respective original amounts. Isotope A does this is 33 days, while isotope B does this in 43 days. What is the approximate difference in the half-lives of the isotopes? 3 days 10 days 13 days 33 days
Monday, July 14, 2014 by Junior

Algebra
A population of insects increases at a rate of 1.5% per day. About how long will it take the population to double? 2.5 days 5.0 days 46.6 days 66.7 days
Monday, July 14, 2014 by Junior

Algebra
Two different cars each depreciate to 60% of their respective original values. The first car depreciates at an annual rate of 10%. The second car depreciates at an annual rate of 15%. What is the approximate difference in the ages of the two cars? 1.7 ears 2.0 years 3.1 years ...
Monday, July 14, 2014 by Junior

algebra
Please help me solve this: If an object is projected upward with an initial velocity of 112 feet per second from a height h of 128 feet, then its height t seconds after it is projected is defined by the equation h=-16t^2 + 112t + 128. How many seconds after it is projected ...
Monday, July 14, 2014 by Danielle

Pre algebra
Will has a mean score of 62 on the first five test in science. if he gets a 50 on the next test what will his mean be then?
Monday, July 14, 2014 by Alexis

algebra
at a restaurant brandy paid twice as much as Katie and Katie paid $3 more than Stephanie if the total combined amount they paid was $56 how much did Katie pay
Monday, July 14, 2014 by sarah

algebra
n/8 + 6= 58, then what is n equal?
Sunday, July 13, 2014 by sweetcakes

algebra expressions
Laurie Ann works 8 hours a day . So far today she has worked x hours . How many hours are left in her workday?
Sunday, July 13, 2014 by S. Fuentes

Algebra II
When asked to solve the rational equation 11/2x^2+x-15=5/2x-5-x/x+3 a student multiplied both sides of the equation by the expression (2x2+x−15)(2x−5)(x+3). Was this the best thing for the student to do? If not, what should the student have done?
Sunday, July 13, 2014 by Monique

RE: ALGEBRA
Given 25x^2 - 10x = 0, which values of x will satisfy the equation? (Hint: Factor the polynomial into two terms, and find the values of x that will make each term 0.) A. x = 0 and x = 5/2 B. x = 0 and x = 2/5 C. x = 0 and x = 2 D. x = 0 and x = 5
Saturday, July 12, 2014 by Emma

Algebra
Given 25^2-10x=0, which values of x will satisfy the equation? (Hint: Factor the polynomial into two terms, and find the values of x that will make each term 0.)
Saturday, July 12, 2014 by Emma

college algebra 1
Order the fraction in each set frim least to greater 2/7,6/7,2/3,1/7,5/7
Saturday, July 12, 2014 by dongz sacal

algebra
Find the slope and the y-intercept of the line. 9x + 5y=56
Saturday, July 12, 2014 by sharon

Algebra
The value, V, of Kalani’s stock investments over a time period, x, can be determined using the equation V=75-(0.80)^-x What is the rate of increase or decrease associated with this account?
Friday, July 11, 2014 by Junior

Algebra
A business owner opens one store in town A. The equation p(x)=10,000(1.075)^t represents the anticipated profit after t years. The business owner opens a store in town B six months later and predicts the profit from that store to increase at the same rate. Assume that the ...
Friday, July 11, 2014 by Junior

algebra
Find the slope-intercept equation for the line with the indicated slope-intercept slope 5/8; y-intercept (0,-3)
Friday, July 11, 2014 by sharon

College Algebra
15x^2-23x-21 /3x-7
Thursday, July 10, 2014 by Valeri

Algebra
Which special case is represented by x^2-121? A. the difference of two squares B. the difference of cubes C. the square of a binomial D. the sum of cubes
Wednesday, July 9, 2014 by Emma

algebra
solve the following systwm graphically. Be sure to check your solution. if the system has an infinite number of solutions, use set-builder notation to write no solution, state this. 4y=x+8, x=2/3y+2
Wednesday, July 9, 2014 by jessica

Algebra II
A student is asked to solve b2 + a2 = c2 for a and gives the following solution. Assume all variables represent positive Real Numbers. b2 + a2 = c2 pb2 + a2 = pc2 b + a = c a = c-b Explain the mistake(s) made by the student and provide the correct solution.
Wednesday, July 9, 2014 by Kiara

Algebra II
Explain, without doing any calculations, why there cannot be a Real solution to the equation p5 + 2x2 + 3px + 7 + 8 = -2:
Wednesday, July 9, 2014 by Kiara

algebra
find two numbers such that if 7 is added to the greater the answer is four times the smaller number, while 28 added to the smaller number is equal to twice the greater number.
Wednesday, July 9, 2014 by fatimah

Algebra
If you multiply a trinomial by a monomial, what type of polynomial will the product be? A. a monomial B. a binomial C. a trinomial D. it is not possible to determine
Tuesday, July 8, 2014 by Emma

Algebra
I am trying to solve the following using the Quadratic Formula but I am confused. Can you explain the steps? Solve (find all complex-number solutions): t^2 + 3 = 6t Thank you
Tuesday, July 8, 2014 by MissPatte

Algebra
Two boys are throwing a baseball back and forth. The ball is 4 ft above the ground when it leaves one child’s hand with an upward velocity of 36 ft/s. If acceleration due to gravity is –16 ft/s2, how high above the ground is the ball 2 s after it is thrown? h(t)=at^2...
Tuesday, July 8, 2014 by Junior

Algebra
A rectangular swimming pool that is 10 ft wide by 16 ft long is surrounded by a cement sidewalk of uniform width. If the area of the sidewalk is 155 ft2, what is its width? A=lw 2.5ft 5.0ft 6.2ft or 15.5ft
Tuesday, July 8, 2014 by Junior

Algebra
Give the degree and classify the polynomial by the number of terms. A. degree: 2; trinomial B. degree: 3; binomial C. degree: 3; trinomial D. degree: 2; binomial Is B correct?
Monday, July 7, 2014 by Emma

Algebra
Combine like terms and classify the polynomial by the number of terms. 7x + 3x – x Is monomial correct?
Monday, July 7, 2014 by Emma

Algebra
The height of an object after it is released can be modeled by the function f(t)=-16t^2+vt+s, where t is the n? The height of an object after it is released can be modeled by the function f(t)=-16t^2+vt+s, where t is the number of seconds after the object is released, v is the...
Monday, July 7, 2014 by alex

Algebra
Myra uses an inverse variation function to model the data for the ordered pairs below. (2, 30), (3, 20), (4, 15), (5, 12), (6, 10) Which statement best explains whether an inverse variation function is the best model for the data? An inverse function is the best model because ...
Monday, July 7, 2014 by Melanie

Algebra
Jordan uses a linear equation to model the data in a table. Which reasoning might Jordan have used in the decision to model the data with a linear equation? The products of corresponding x- and y-values are equal. The ratios of consecutive y-values are equal for evenly spaced ...
Monday, July 7, 2014 by Melanie

algebra
Tasha invests $5,000 annually at 6% and $5,000 annually at 8%. Thomas invests $10,000 annually at 7%. Which statement accurately compares the two investments if interest is compounded annually?
Monday, July 7, 2014 by alex

Algebra
A toy rocket that is shot in the air with an upward velocity of 48 feet per second can be modeled by the function f(t)=-16t^2+48t , where t is the time in seconds since the rocket was shot and f(t) is the rocket’s height. What is the maximum height the rocket reaches? ...
Monday, July 7, 2014 by alex

algebra
Simplify the exponential expression [-10x13y^12]^0 ---------------- 2x^9y^3
Sunday, July 6, 2014 by Marcus

Algebra
x: 0, 2, 4, 6 ,8 y: 1, 49, 2401, 117,649 How do the y-values in the table grow? A. The y-values increase by a factor of 49 for each x increase of 1. B. The y-values increase by 49 for each x increase of 1. C. The y-values increase by a factor of 7 for each x increase of 1. D. ...
Sunday, July 6, 2014 by Emma

algebra
Find all zeros of the polynomial P(x)=x^3 - 2 x^2 - 9 x - 30.
Sunday, July 6, 2014 by jay

College Algebra I
5x – 9y = 7, 7y – 3x = -5
Sunday, July 6, 2014 by michael43

Algebra
How do I find the solution for -2x-4y=1 12y=-6x-3?
Sunday, July 6, 2014 by Shellie

algebra
Matthew cuts s slices of bread. He splits them evenly among 6 plates. Write an expression that shows how many slices are on each plate.
Sunday, July 6, 2014 by coolguy

Algebra
Solve equation. -6e^8n+8 -3=-23
Saturday, July 5, 2014 by Tom

Algebra
Find the polynomial form of the equation below. y=-1.0(x-4.0)^2+2.0
Saturday, July 5, 2014 by Emma

algebra
A lab assistant wants to make 5 liters of 27.2% acid solution. If solutions of 30% and 16% are in stock, how many liters of each must be mixed to prepare the solution?
Saturday, July 5, 2014 by annie

Algebra
Evan washes two types of vehicles. It takes him 30 minutes to wash a car and 40 minutes to wash a truck. He charges $12 to wash a car and $15 to wash a truck. In 270 minutes, Evan made $105 washing cars and trucks. How many trucks did Evan wash?
Friday, July 4, 2014 by alex

algebra
The perimeter of a rectangular painting is 354 centimeters. If the width of the painting is 79 centimeters, what is its length?
Friday, July 4, 2014 by Libby

algebra
A chicken farm orders bags of feed from two farmers. Store X charges $20 per bag, and store Y charges $15 per bag. The farm must obtain at least 60 bags per week to care for the chickens properly. Store Y can provide a maximum of 40 bags per week, and the farm has committed to...
Friday, July 4, 2014 by alex

algebra
A over 6 - 11=25 what's my answer
Friday, July 4, 2014 by nate

algebra
find the zeros and multiplicity of the equation, Range and interval q is positive. q(x)=-x^2(x+1)^2(x-2)
Friday, July 4, 2014 by solomon

Algebra
The vertex of a parabola is at (-2,4), and the x-intercepts are at -6 and 2. Determine the domain and range of the function. a. D: all real numbers R: all real numbers b. D: all real numbers R: y ≤ 4 c. D: -6 ≤ x ≤ 2 R: y ≤ 4 d. D: x ≤ 4 R: all ...
Friday, July 4, 2014 by Emma

Algebra
All parabolas are symmetric with respect to a line called the axis of symmetry. A parabola intersects its axis of symmetry at what point? a. vertex b. function c. translation d. y-intercept Is it A. vertex?
Friday, July 4, 2014 by Emma

Algebra
Which of the following is not a step in graphing a quadratic function? A. Find the equation for the axis of symmetry. B. Find the slope. C. Find the coordinates for the vertex. D. Plug in values for x around the vertex to get values of y Is B correct?
Thursday, July 3, 2014 by Emma

Algebra
The vertex of the graph of a quadratic function is (3, 1) and the y-intercept is (0, 10). Which of the following is the equation of the function?
Thursday, July 3, 2014 by Emma

Algebra
A sports memorabilia store makes $6 profit on each football it sells and $5.50 profit on each baseball it sells. In a typical month, it sells between 35 and 45 footballs and between 40 and 55 baseballs. The store has no more than 80 footballs and baseballs in stock during the ...
Thursday, July 3, 2014 by alex

Algebra
The constraints of a problem are listed below. What are the vertices of the feasible region? x+y <= 7 x-2y <=-2 x >=0 y >=0
Thursday, July 3, 2014 by Jesus

Algebra
Joylin receives a $50 gift card for the local movie theater for her birthday. She uses the card to purchase tickets and snacks for her family. If Joylin spends $6 more on tickets than she does on snacks, how much does Joylin spend on tickets?
Thursday, July 3, 2014 by Kelly

Algebra
r=10.5(0.535)^x determine the decay rate
Thursday, July 3, 2014 by Emma

Algebra
How do I find x for this equation? I think I should get e^(something). Thanks in advance! 3x^2+4lnx+4=0
Thursday, July 3, 2014 by Sam

Algebra
Steve for the two answer you gave me could you show me more detail how you came up with answers please Thanks
Thursday, July 3, 2014 by michael R 43

Algebra
Steve for the two answer you gave me could you show me more detail how you came up with answers please Thanks
Thursday, July 3, 2014 by michael R 43

algebra
5x - 9y = 7, 7y - 3x = -5 solve using any algebraic method
Thursday, July 3, 2014 by michael R 43

Algebra
A nontoxic wood furniture polish can be made by mixing mineral(or olive)oil with vinegar. To make a 16-oz batch for a squirt bottle, Michael uses an amount of mineral oil that is 4oz more than twice the amount of vinegar. How much of each ingredient is required?
Thursday, July 3, 2014 by michael R 43

algebra
At the station, you fill the tank. You use an overhead fill that puts out 162 gallons per minute. How long will it take to fill the tank?
Wednesday, July 2, 2014 by floyd

algebra
Find a quadratic function with zeros -7i and 7i
Wednesday, July 2, 2014 by Vikky

algebra
The dimensions of a page are 12 in. by 10 in. and it is supposed to contain 80in2 of the printed region. What should the margin be if all the margins are the same?
Wednesday, July 2, 2014 by Vic

Algebra
This is giving me a lot of trouble. Factoring Differences of Squares Factor Completely 98-8w^2 and can you explain how you got the common factor if there is one please
Wednesday, July 2, 2014 by MissPatte

algebra math
What are two equations that model the data? What are the domain and range of each equation? Month|Sales 2 | 3 4 | 5 6 | 4 8 | 6 10 | 5 12 | 12 14 | 16 16 | 22 18 | 26 20 | 32 I am very confused about how to do this question.
Wednesday, July 2, 2014 by edison1969

algebra
The scientific notation 3.14 x 10 -3 has what value
Wednesday, July 2, 2014 by kayla

algebra
if mary's age is x years.what will be the present age of mary's niece if her niece is 3 years less than one third of mary's age 5 years ago?
Wednesday, July 2, 2014 by roshani

Algebra
The product of 3 consecutive integers decreased by the cube of the first is 85. Wahat are the integers? THE GIVEN EQUATION IS: (x)(x+1)(x+2)-xcube = 85 How can i solve this ?
Wednesday, July 2, 2014 by Chesca

algebra 1
Evan is making a table that will be created in the shape of the figure below. The table top is a triangle attached to a rectangle. To purchase the right amount of paint, he needs to know the area of the table top. He can only spend $10 on paint, which is enough to cover 150 ...
Tuesday, July 1, 2014 by monica

algebra
The debate team has m members. Each member sold 20 coupon books as a fundraiser. Write a variable expression that shows the number of coupon books the club sold.
Tuesday, July 1, 2014 by Anonymous

algebra
Fiber-optic cables are used widely for internet wiring, data transmission, and surgeries. When light passes through a fiber-optic cable, its intensity decreases with the increase in the length of the cable. If 1500 lumens of light enters the cable, the intensity of light ...
Monday, June 30, 2014 by Tjae

algebra
x=5 4X-9/3X
Monday, June 30, 2014 by Stephanie

math
An Algebra I test contains 40 questions. Some of the questions are worth 4 points each, and some are worth 2 points each. The total test is worth 100 points. Let f represent the number of questions worth 4 points and t, the number of questions worth 2 points. Which equation ...
Monday, June 30, 2014 by Cassie

algebra
What are the possible side of the rectangle with area of (x2 + 8x) cm2 using CMF?
Monday, June 30, 2014 by apple

algebra
42 < –6d A. d < –7 B. d < 36 C. d > –7 D. d < –48 i really need help with this i don't get it
Monday, June 30, 2014 by kells

Algebra
Quick Question, when would an inequality like this work: x^2 - 4x >or equal to 0? ...What would I have to do to figure out when this would and would not work?
Monday, June 30, 2014 by y912f

Algebra
Quick Question, when would an inequality like this work: x^2 - 4x >or equal to 0? ...What would I have to do to figure out when this would and would not work?
Monday, June 30, 2014 by y912f

ALGEBRA
Solve This Problem. 8n 12 - 5n = 21
Monday, June 30, 2014 by JD JOHNSON

Algebra
What is the growth rate of the function y=3*2^x? Is the answer 1?
Sunday, June 29, 2014 by Emma

Algebra (Identity Function)
x and y are both identity functions. find x(4) + y(99)
Saturday, June 28, 2014 by Jean-Claude

Algebra
Mary creates a table of values for a function and plots the points. She finds that the difference in the y values is the same. What kind of function did she graph? How can you tell if a graph is linear, quadratic, exponential or square root?
Saturday, June 28, 2014 by Emma

Algebra
Which is an equivalent form of the expression 1800(1.2)–t? Is 1800(1/2)^t correct?
Saturday, June 28, 2014 by Emma

Algebra
A population of ants is growing at a rate of 10% per month. What is the growth factor?
Saturday, June 28, 2014 by Emma

Algebra
While shopping for a party, June bought 2 1/6 lbs of hamburger, 3 4/5 lbs of chicken, and 4 1/2 lbs of ham. How much meat did she buy?
Friday, June 27, 2014 by Kim

Algebra
Which of the following statements is the best description of exponential decay? A. Exponential behavior occurs when a function increases at a rate of increasing value. B. Exponential behavior occurs when a function increases at a rate of decreasing value. C. Exponential ...
Friday, June 27, 2014 by Emma

Algebra
Which of the following is an example of exponential growth or decay? A. a colony of bacteria staying constant in quantity each week B. a colony of bacteria doubling in quantity each week C. a colony of bacteria increasing by 100 in quantity each week D. a colony of bacteria ...
Friday, June 27, 2014 by Emma

Algebra
Fiona invested $1000 at 8% compounded continuously. At the same time Maria invested $1100 at 8% compounded daily. How long will it take for their investments to be equal in value? Assume there are 365 days in every year. Please help I have tried everything and cannot solve ...
Friday, June 27, 2014 by Kendall

Algebra
divide and simplify the radical (3+ sqrt18)/4 sqrt12 I'm not sure how to conjugate the denominator?
Thursday, June 26, 2014 by Emma

algebra
I need help solving this equation. 7y+5/3 = -8/y-3. I am stuck. please help me.
Thursday, June 26, 2014 by Maria

Algebra
2√3 times 4√21 the answer is 24√7 but I don't understand how you would get that.
Thursday, June 26, 2014 by Emma

Algebra 1
How do you find the zeros? g(x) = x3 – x2 – 4x + 4
Thursday, June 26, 2014 by Rae

Algebra
Find the GCF 12x^3 and 20x^2. 4x^2????
Thursday, June 26, 2014 by Anonymous

Algebra
Evaluate the limit of x-1 / square root of x - 2x as x approaches to 1. NOTE: 2X does not belong to the square root.
Thursday, June 26, 2014 by Van

Algebra
x^3 -5x-6=0 can you please tell me how to solve this algebraically? I tried using grouping method x(x^2-5)-6=0, I'm not sure what to do next.
Thursday, June 26, 2014 by Anonymous

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Homework Help: Math