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January 20, 2017

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

Algebra
The table shows the number of hours that a group of friends spent in their first week training to run a marathon. In the second week, they each add five hours to their training times. What are the mean, median, mode, and range of times for the second week? Jeff 9 Mark 5 Karen ...
Sunday, April 24, 2016 by GummyBears16

Algebra 1
Explain why the two equations below have the same solutions. x + 3y = −1 −2x − 6y = 2 A. The two equations have the same slope, so they have the same solutions. B. The second equation is a multiple of the first equation, so they have the same solutions. C. ...
Sunday, April 24, 2016 by Sanjay Gupta

Algebra
1.What is the domain of the function? Y=√3x+3 A.x≤-1 B.x>1 C.x≥-1 D.x<1 I think the answer is B please correct me if I'm wrong
Sunday, April 24, 2016 by GummyBears16

Algebra
Compare the line passing through the points (−3, −11) and (6, 4) to the line given by the equation y=35x−6. A. They have the same slope. B. They have the same x-intercept. C. The two lines are perpendicular. D. They have the same y-intercept. I say c if it is...
Sunday, April 24, 2016 by Kaashif

Algebra
1.Simplify the radical expression. √5+6√√5 A.5√5 B.7√10 C.7√5 D.5√10 2.Simplify the radical expression. 2√6+3√96 A.14√6 B.14√96 C.5√96 D.50√6 3.Simplify the radical expression. (8+√11)(8-√...
Sunday, April 24, 2016 by GummyBears16

Math, algebra 2
You are stacking soup cans for a display in a grocery store. Your manager wants you to stack 120 cans in layers, with each layer after the first having one less can then they layer before it. One can should be in the top layer. If you use all 120 cans, how many cans should be ...
Sunday, April 24, 2016 by Nook

Algebra
Samina spent 1\8 of her money to buy books ,1\5 to buy clothes or 1\10 give to charity, if she had still rupees 15 ,more than half of her money ,find the amount she originally had
Sunday, April 24, 2016 by Syra

algebra
resistance of 8 and 12ohm are joined in parallel calculate the total resistance?
Sunday, April 24, 2016 by ramesh

algebra
Select the first five terms in the geometric sequence an=(3)n−1, starting with n=1
Saturday, April 23, 2016 by jim

Algebra
Which pattern could have been used to create the sequence? 20, –40, 80, –160, 320 Multiply the previous term by –2 Divide the previous term by 2 Subtract 60 from the previous term. Add –60 to the previous ...
Saturday, April 23, 2016 by Reyrey

algebra
638 divided by 8
Friday, April 22, 2016 by Aisha

algebra!!!!
Solve the system below. y=x2-2x-6 y=4x+10 A. (-2, 2) B. (8, 42) C. (-2, 2) (8, 42) D. There is no real solution
Friday, April 22, 2016 by Cami

Algebra
Probability of drawing a red diamond from a 52 card deck of cards.
Friday, April 22, 2016 by HeLp

College Algebra
A cars value is declining exponentially. The car is currently 3 years old and has a value of 18,000. The car sold for 26,000 brand new. Find the rate at which the value of the car is decreasing. So far my equation is 18,000=26,000 (3-.04)^the But I'm not sure if that is right
Thursday, April 21, 2016 by Austin

algebra HELP PLEASE
A city is considering building a commuter train. The steepest section of track has a fall of 72.8 feet for a horizontal distance of 280 feet. What is the grade of this section of track? The downgrade of this section of track as a reduced fraction is? Converted the fraction to ...
Thursday, April 21, 2016 by wendy

algebra with pizzazz
What might you have if you don't feel well
Thursday, April 21, 2016 by Kayla

math
how do you own your learning in algebra 1?
Thursday, April 21, 2016 by Nikki

Algebra
Find the volume of a cylindrical oatmeal box with radius 2 inches and height 8 inches
Thursday, April 21, 2016 by Breunka

algebra 2
Write (21 − 4i) − (16 + 7i) + 28i as a complex number in standard form.
Thursday, April 21, 2016 by david

Algebra
the perimeter of a triangle is 56 inches. the longest side measures 4 inches less than the sum of the other two sides. three times the shortest side is 4 inches more than the longest side. find the lengths of the three sides
Thursday, April 21, 2016 by Nina

algebra
A mortgage broker purchased two trust deeds for a total of $290,000. One trust deed earns 9% simple annual interest, and the second one earns 12% simple annual interest. If the total annual interest from the two trust deeds is $31,500, what was the purchase price of each ...
Wednesday, April 20, 2016 by megan

Algebra
The temperature fell by 9°F today right a sign number to represent this temperature change
Wednesday, April 20, 2016 by Vicki

algebra
There are 6 students in a club. For a certain activity, 4 of the students need to form a separate group. How many ways can this group of 4 students be formed?
Wednesday, April 20, 2016 by math

Pre Algebra
Which polynomial does the model represent? –x³ + 2x² – 3x + 2 x² + x – 2 –x² – x + 2***** –x² + x â&#...
Wednesday, April 20, 2016 by Anonymous

algebra
16oz of nails is to be made of a combination of nails one that costs four dollars per oz and another that costs eight dollars per oz. How many oz of each kind of nails would you need to equal 16oz of a mixture of nails that costs seven dollars per pound? What formula would I ...
Wednesday, April 20, 2016 by james

Algebra
Please help ASAPPP!!!! I have no idea how to even start on this! f(x)=9x^3+2x^2-5x+4 and g(x)=5x^3-7x+4. What is f(x)-g(x)? Show all of your steps and wrote your final answer in factored form. If someone could help me work through this problem that would be great!
Wednesday, April 20, 2016 by Taylor

Algebra ll
Factor completely, then place the answer in the proper location on the grid. Write the answer in descending powers of x. 6x^4+15x^3y^2+3x^2y^3
Wednesday, April 20, 2016 by Brown

algebra
it costs $2000 to purchase a copier, and each copy costs $0.02 to make. what is the fixed cost? what is the variable cost? and what is the cost equation for c in the terms of x?
Wednesday, April 20, 2016 by salha

Algebra. NEED HELP ASAP PLEASE
After 2009 the sales of new cell phones without cameras began declining. The number of people y (in thousands) who bought a cell phone without a camera can be estimated by the equation y=−30x+270 y=-30x+270, where x is the number of years after 2009. a) Find the x-...
Tuesday, April 19, 2016 by Duran

algebra
After 2009 2009 the sales of new cell phones without cameras began declining. The number of people y (in thousands) who bought a cell phone without a camera can be estimated by the equation y=−30x+270 y=-30x+270, where x is the number of years after 2009 a) Find the x-...
Tuesday, April 19, 2016 by Duran

Algebra
A campground consist of 10 square campsites arranged in a line along the beach the distance from the edge of the campsite to the water is 4 yards the area of the campground including the beach Is 1050 yd.² what's the width of one campsite
Tuesday, April 19, 2016 by Michelle

Algebra
7 – 5(2 – x) = –(x – 8) = 11/6
Tuesday, April 19, 2016 by Chris

math algebra
An​ employee's new salary is ​$18,165 after getting a​ 5% raise. What was the salary before the increase in​ pay?
Tuesday, April 19, 2016 by lola

Algebra
I'm doing Permutations. Simplify 9! a.45 b.362,880 c.265,456 d. 125,396 I think it's a.
Tuesday, April 19, 2016 by Shyann

algebra
The Robinson's have quite a lot of family pets. They have 3 times as many budgies as they have cats and there are a total of 30 legs between them. Complete the following statement. The Robinson's have ____cats and ____budgies. I need help, can someone show me the ...
Tuesday, April 19, 2016 by 88

Algebra
The second side is 10 more than the third side and the first side is 6 less than the third side. What are the sides of the triangle if the perimeter is 64yd?
Monday, April 18, 2016 by Olivia

algebra
Ociel has designed a square mural that measures 10 feet on each side. Bill has also designed a square mural, but his measures y feet shorter on each side. a. Write an expression to represent the area of Bill's mural: (10-2y)(10-2y) b. How much smaller than Ociel's ...
Monday, April 18, 2016 by Meghan

Algebra
Directions: Follow the instructions below to design a fair race for the new video game Animal Tracks. 1. Choose two animals with different speeds. You can choose from the chart that starts at the bottom of this page or do research to choose your own. 2. Design a fair race in ...
Monday, April 18, 2016 by ms. sue please help

Algebra
what are the domain and range of th function y= 2√3x+4-5? Need HELP, ASAP Thanks
Monday, April 18, 2016 by Paige

Algebra
what are the domain and range of th function y= 2√3x+4-5? Need HELP, ASAP Thanks
Monday, April 18, 2016 by Paige

algebra
three numbers are in harmonic progression. If the third number were decreased by 4 they would be in arithmetic progression. If the third number were decreased by 3 they would be in geometric progression. Find the third term of the harmonic progression.
Monday, April 18, 2016 by Ginotomba

math- algebra 2
An amount of $20,000 is borrowed for 13 years at 5% interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back?
Monday, April 18, 2016 by Skylar

algebra
A box contains $7.80 in nickels, dimes, and quarters. There are 46 coins in all, and the sum of the numbers of nickels and dimes is 2 less than the number of quarters. How many coins of each kind are there?
Monday, April 18, 2016 by Lea'

algebra
Sam invested $2150, part of it at 6% and the rest at 8% yearly interest. The yearly income on the 8% investment was $22 more than twice the income from the 6% investment. How much did he invest at each rate?
Monday, April 18, 2016 by Lea'

Math/algebra
60 + -25x = 35x + 20
Monday, April 18, 2016 by Kico'sgirl

Math (Elementary Algebra)
What is the value of the expression 2x^2 + 3xy - 4y^2 when x = 2 and y = -4 ? Please help this is for my accuplacer. If you could show your work explaining how you got the answer that would be awesome. Thank you in advance
Monday, April 18, 2016 by Leah

Algebra
How do you know there is no real solution to the quadratic equation x2+x+14=0?
Sunday, April 17, 2016 by Matisha

algebra
Deshaun rented a truck for one day. There was a base fee of $14.50 , and there was an additional charge of 8 cents for each mile driven. The total cost, C (in dollars), for driving x miles is given by the following function. =Cx+0.08x14.50 What is the total rental cost if ...
Sunday, April 17, 2016 by var

Algebra
The first side is triple the second side and the third side is five times the second side. What are the sides of the triangle if the perimeter is 72ft?
Sunday, April 17, 2016 by Olivia

algebra
translate this expression into a mathematical problem the difference between one more than three times a number and a number is 19 find the smaller number
Sunday, April 17, 2016 by laverne

Algebra
The function H(t) = -16t2 + vt + s shows the height H (t), in feet, of a projectile launched vertically from s feet above the ground after t seconds. The initial speed of the projectile is v feet per second. Part A: The projectile was launched from a height of 90 feet with an ...
Sunday, April 17, 2016 by Ashlee

algebra
Mr. Smith drove 90 miles one way to visit his brother. He averaged twice his original speed on the return trip than he did going to visit. If his total travel time was 3 hours, how fast was he going each way
Saturday, April 16, 2016 by Anonymous

algebra
A laptop computer is purchased for $5000 . Each year, its value is 70% of its value the year before. After how many years will the laptop computer be worth $300 or less
Saturday, April 16, 2016 by kate

Algebra
Rene used a $4 off coupon to buy bows which cost $2 each. Write an inequality rene could use to determine the number of bows she can buy if she plans to spen more that $8. Then graph the solution set
Saturday, April 16, 2016 by Aj

Algebra
11. What are the x-intercepts of the graph of the quadratic function f(x) = 5x2 + 4x – 1?
Saturday, April 16, 2016 by Anonymous

Algebra
There is an initiation fee to join the River Country Club, as well as monthly dues. The total cost after 7 months' membership will be $3,125, and after 11/2 years, $3,950. Find both the initiation fee and the monthly dues. initiation fee $ monthly dues $
Saturday, April 16, 2016 by Sherry

Algebra 2
If 550 m of fencing is available to build five adjacent pens, as shown in the diagram on the left, express the total area A of the pens as a function of x. What value of x will minimize the total area? What is the maximum area?
Saturday, April 16, 2016 by Eenra

Algebra 2
For a typical basketball shot, the ball's height in feet will be a function of time in flight in seconds, modeled by an equation such as h = -16t^2 + 40t + 6. Find when the shot might reach the height of the basket which is 10 feet.
Saturday, April 16, 2016 by Eenra

algebra
The size of the coyote population at a national park increases at the rate of 4.6% per year. If the size of the current population is 130, find how many coyotes there should be in 6 years. Use the function f(x)=130e^0.046t
Friday, April 15, 2016 by Nicole

Pre-Algebra
You and a friend work at an orange orchard. It takes you 40 minutes to pick all of the oranges from the tree. It takes your friend 60 minutes to complete the same job. How long will it take to pick all of the oranges from an orange tree if you work together? I think it is 50 ...
Friday, April 15, 2016 by Kyra

Math/Algebra
In the school election, votes were cast for Sam, Mary, and Bill in the ratio of 4:3:2. If a total of 2,178 votes were cast, how many votes did Mary receive?
Friday, April 15, 2016 by Noel

Algebra/Math
The difference of two numbers is 29. If five times the smaller number is twice the larger, the result will be one. What is the larger number ? Please help.. I need an answer in 10 days. Thank you, much appreciations.
Friday, April 15, 2016 by Wendy

Algebra
1.what kind of function best models the data in the table use differences and ratios. x y 0 5 1 7 2 9 3 11 4 13 2.write an equation to model the data table. x y 0 3 1 5.3 2 7.6 3 9.9 4 12.2 3.write an equation to model the data table. x y 0 1.4 1 4.2 2 12.6 3 37.8 4 113.4
Friday, April 15, 2016 by Paige

Algebra
1.what kind of function best models the data in the table use differences and ratios. x y 0 5 1 7 2 9 3 11 4 13 2.write an equation to model the data table. x y 0 3 1 5.3 2 7.6 3 9.9 4 12.2 3.write an equation to model the data table. x y 0 1.4 1 4.2 2 12.6 3 37.8 4 113.4
Friday, April 15, 2016 by Paige

Algebra
what kind of function best models the data in the table use differences and ratios. x y 0 4 1 5 2 8 3 13 4 20
Friday, April 15, 2016 by Paige

Algebra
what is the value of c so that x^2+13x+c is a perfect square trinomial I need HELP ASAP!!!
Friday, April 15, 2016 by Paige

Algebra
Two pipes are connected to the same tank. When working​ together, they can fill the tank in 12 hrs. The larger​ pipe, working​ alone, can fill the tank in 18 hrs less time than the smaller one. How long would the smaller one​ take, working​ alone...
Friday, April 15, 2016 by Mai

Algebra
Airplane A travels 1400 km at a certain speed. Plane B travels 1000 km at a speed 50 km /h faster than plane A in 3 hrs less time. Find the speed of each plane
Friday, April 15, 2016 by Mai

Algebra
23. what is the value of c so that x^2+13x+c is a perfect square trinomial I need HELP ASAP!!!
Friday, April 15, 2016 by Paige

Algebra
During the first part of a​ trip, a canoeist travels 28 miles at a certain speed. The canoeist travels 9 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 3 hrs. What was the speed on each part of the​ trip?
Friday, April 15, 2016 by Mai

Algebra
If an object is thrown downward with an initial velocity of v0​, then the distance it travels is given by s=4.9t sqrt 2 +v v0t. An object is thrown downward from an airplane 100 m from the​ ground, with an initial velocity of 6 ​m/sec. How long does it take ...
Friday, April 15, 2016 by Mai

Algebra
Airplane A travels 1400 km at a certain speed. Plane B travels 1000 km at a speed 50 km divided by h faster than plane A in 3 hrs less time. Find the speed of each plane.
Friday, April 15, 2016 by Rebel

Algebra
A square has an area of 400 square miles. What is the length of each side of the square?
Friday, April 15, 2016 by Xavier

algebra
can you please show me how to graph 6y+5x=-18 I know the x-intercept is (-18/5,0) and the y-intercept is (0,-3)
Friday, April 15, 2016 by patrick

Algebra 2
Parabolas - you are my last resort: Find a quadratic function in standard form for each set of points. (0, –4), (1, 0), (2, 2) Can't print answer choices
Friday, April 15, 2016 by Sandra

algebra
There are many measurements of the human body that are positively correlated. For example, the length of one's forearm (measured from elbow to wrist) is approximately the same length as the foot (measured from heel to toe). They are positively correlated because, as one ...
Thursday, April 14, 2016 by abby

Algebra
john is three times as old as Greg, and Greg is half the age of Bob, Steve is two times the age of John and Bob combined. if Steve's age is 60, how old is Greg's older cousin Jane, who is two years older than Greg?
Thursday, April 14, 2016 by Alison

Algebra
What were the headlines after a 3 foot 10 inch fortuneteller escaped from jail? Its an inequality equation like 3(2x + 5)=39 and 11(4-6y) + 5(13y+ 1)=9. Please Help Me with this!
Thursday, April 14, 2016 by Anonymous

Algebra
A basket holds no more than 50 pounds of material. Each gold coin weighs about 0.5 ounces and each silver coin weighs about 0.25 ounces.You want to know the different numbers of each type of coin that could be in the basket. Write an inequality that models the weight in the ...
Thursday, April 14, 2016 by Kimmy

Algebra
The length of time, t (in seconds), it takes the pendulum of a clock to swing through one complete cycle is a function of the length of the pendulum in feet. Defined by: t = f(L) = 2pi sqrt L/32 A.Rewrite the formula using fractional exponents. B.Determine the length of the ...
Thursday, April 14, 2016 by Skipper

algebra
17. In the last basketball game, Kevin scored 2 less than a third of his team's points. Part A: Let n represent the number of points Kevin's team scored. Write an expression for the number of points Kevin scored. Part B: Kevin scored 14 points. How many points did the...
Thursday, April 14, 2016 by Anonymous

Algebra
-6y+8y^2+2/1+2y
Thursday, April 14, 2016 by Kaashif

algebra
What is, x+3y=1 -3×-3y=15 Can you show me the steps, confused?
Thursday, April 14, 2016 by Toni

algebra 1
The table below shows the number of hours some business people in two states spend in meetings each week: State A 21 23 24 22 24 25 23 23 22 State B 24 22 20 23 23 50 20 46 21 Part A: Create a five-number summary and calculate the interquartile range for the two sets of data...
Wednesday, April 13, 2016 by britany

Algebra
Divide: (y^2-y+4) divide by (y+3) I worked it out, but don't know how to put my answer can you please do it too and show me what the answer is. I used long division.
Wednesday, April 13, 2016 by Kaashif

algebra
A car dealer recently had a promotion which they gave an 8% discount to the first 50 people through the door. If you are one of those people and the car you are interested in cost $25,300.00, find the discount amount and the new price of the car.
Wednesday, April 13, 2016 by Duran

algebra
A 74-foot length of wire is to be cut into 2 pieces, so that the longer piece is four feet longer than six times the shorter piece. Find the length of each piece.
Wednesday, April 13, 2016 by wendy

Algebra. NEED HELP ASAP PLEASE
The formula F=(9/5)C+ 32 F=95C+32 may be used to convert Celsius temperatures to Fahrenheit temperatures. What is the range of Celsius temperatures if the Fahrenheit range is -65°F to 60°F.
Wednesday, April 13, 2016 by anahi

Pre Algebra, Check my answers?
You roll a number cube numbered one to six 12 times. P(5) = two over three. What type of probability is illustrated and why? (1 point) experimental; the result is based on the number of possible outcomes ** experimental; the result is found by repeating an experiment ...
Wednesday, April 13, 2016 by Louie

algebra
4 square root x-2+2=x+3
Wednesday, April 13, 2016 by mo kour

JUST URNS - Pre-Algebra (Update; ignore last post)
Each of two urns contains green balls and red balls. Urn 1 contains 8 green balls and 12 red balls. Urn 2 contains 5 green balls and 8 red balls. If a ball is drawn from each urn, what is P(red and red)? a. 79/65 b. 24/65 c. 20/33 d. 2/13 Please explain! THANK YOU
Wednesday, April 13, 2016 by The Philly Inquirer

Urns and $ - Pre-Algebra
1. Each of two urns contains green balls and red balls. Urn 1 contains 8 green balls and 12 red balls. Urn 2 contains 5 green balls and 8 red balls. If a ball is drawn from each urn, what is P(red and red)? a. 79/65 b. 24/65 c. 20/33 d. 2/13 2. You have five $1 bills, four $5 ...
Wednesday, April 13, 2016 by The Philly Inquirer

Pre-Algebra Permutations and Combinations
16. Simplify 6p2 30 15 12 720 17. Simplify 8c5 6,720 336 56 10 Okay, so the formula for Permutations is n!/(n-r)! and the formula for Combinations is n!/r!(n-r)! however I don't quite know how to figure either of these out. I'm sort of blanking here! Please help. BTW, ...
Wednesday, April 13, 2016 by The Philly Inquirer

algebra
Which of the following expressions is true? a. 4^3 * 4^5 < 4^12 b. 5^2 * 5^3 > 5^5 c. 3^2 * 3^4 = 3^2***** d. 5^2 * 5^4= 5^8 Which of the following expressions is true? a. 2^4 * 2^4 >2^7***** b. 3^2 * 3^6= 3^7 c. 4^3 * 4^5< 4^8 d 5^2 * 5^3 = 5^6 Please Help!
Wednesday, April 13, 2016 by someone

Algebra
Justine earned $26,000 during the first year of her job at city hall. After each year she received a 3% raise. Find her total earnings during the first five years on the job.
Wednesday, April 13, 2016 by Angel

Algebra 2
Use summation notation to write the series 2+4+6+8 for 10 term in each of these images, the lower limit of the summation notation is either n=1, or n=0
Wednesday, April 13, 2016 by Lola

Algebra 2
Is there a common ratio for the geometric sequence and what are the missing terms? 2, -4, -16, -36..
Wednesday, April 13, 2016 by Lola

algebra 1
In a basketball game you score 2 points for a field goal and 1 point for a free throw. Suppose that you have scored at least 5 points a game and have a season high of 12 points a game. How many field goals and free throws could you have made in one game?
Tuesday, April 12, 2016 by ian

algebra/math
Find the smallest value of x such that x^2+6x + 9 = 24 Please help me! I am very confused. Thank you!
Tuesday, April 12, 2016 by timmy

algebra
Express (15 - 20i)/(1-2i) in a+bi form. Thank you for all of the help!
Tuesday, April 12, 2016 by Ms. Clack

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Homework Help: Math