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Homework Help: Math: Algebra

Recent Homework Questions About Algebra

Algebra 2
Solving Quadratic Systems x^2+y^2=20 x^2-6y=28 PLEASE SHOW WORK I'M HAVING TROUBLE SOLVING IT
Monday, December 1, 2014 by Alicia

Algebra 2
Solving Quadratic Systems x^2+y^2=2 x^2-6y=10 Please show work I'm having trouble solving it
Monday, December 1, 2014 by Alicia

algebra 2
x^2-18x-40=0
Monday, December 1, 2014 by anonymous

algebra 2
Solve for x. 250= (13+x)^2
Monday, December 1, 2014 by anonymous

algebra
Develop a tree diagram for tossing two, eight-sided gaming dice to figure out how many possibilities there are. Discuss the purpose of using such a visual in working out probability.
Sunday, November 30, 2014 by larry

Algebra
A woman wishes to invest $12,500 in three types of bonds: municipal bonds paying 8% interest per year, bank investment certificates paying 9%, and high-risk bonds paying 12%. For tax reasons she wants the amount invested in municipal bonds to be at least three times the amount...
Sunday, November 30, 2014 by Jessica

Algebra
A confectioner sells two types of nut mixtures. The standard-mixture package contains 100 g of cashews and 200 g of peanuts and sells for $1.85. The deluxe-mixture package contains 150 g of cashews and 50 g of peanuts and sells for $2.45. The confectioner has 15 kg of cashews ...
Sunday, November 30, 2014 by Jessica

algebra
You must submit your response as a file. An object’s weight depends on its height above the surface of the earth. If a man weighs 190 pounds on the surface of the earth, then the man's weight in pounds (W) x miles above the surface is approximated by the formula: W = (190&#...
Sunday, November 30, 2014 by darlene

Algebra word problem
Mary is two years older than Robert. The sum of their ages is 28. Write an expression for each person, write the equation for the situation and find out how old each person is.
Sunday, November 30, 2014 by Lee Ann

Algebra
(7.8*10 to the 12th power)*800=(7.8*10 to the 10th power)*80,000 Directions:tell whether each equation is true or false. if false, write the inequality in like terms I don't remember how to start multiplying.
Sunday, November 30, 2014 by Bob

Algebra
What is the probability of obtaining tails and a sis?
Sunday, November 30, 2014 by Maxine

Algebra
Math The Monahans have 21 meters of fencing with which to enclose a garden. If they plan to make the garden twice as long as it is wide, what is its maximum width?
Saturday, November 29, 2014 by Vonna

algebra 2
Solve for the unknown. 1.) √y+√y+7=7 2.) √x+11=√x +1
Saturday, November 29, 2014 by Janet

algebra
A traveler required a total of 12 h on the round trip, averaging 20mi/h and 30 mi/h. Find a time in hours going using a T for this.
Saturday, November 29, 2014 by ER

Algebra B
What is the coefficient of x in the division (18x3 + 12x2 – 3x) ÷ 6x2 ? 3 2 –0.5 –3 I am helping my granddaughter and I need help to explain...
Saturday, November 29, 2014 by Anonymous

Algebra 2
Solving Quadratic Systems 2x^2+5y^2=53 4x+y^2=17 Please show work I'm having trouble solving it.
Saturday, November 29, 2014 by Alicia

Algebra 2
Solving Quadratic Systems 16x^2-9y^2=144 y=9-x^2 Please show work I'm having trouble solving it.
Saturday, November 29, 2014 by Alicia

algebra
A sausage sample was found to contain 65% moisture, based on fresh weight. The sausage was dried in an oven until its moisture content was 10% . A 2.0 g portion of the dried sausage was extracted with the Soxhlet method to determine the amount of crude fat. A clean Soxhlet ...
Saturday, November 29, 2014 by Maya

ALGEBRA 2
In triangle ABC , angle C is a right angle. Find the remaining sides and angles. Round your answers to the nearest tenth. Show your work
Friday, November 28, 2014 by SAM

pre-algebra
Which of the following does NOT represent a domain? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A) The total number of oranges Andre has from buying bags of oranges at the store B) The number of minutes that have passed while reading pages from a book C) How many sandwiches are made ...
Friday, November 28, 2014 by Pierce_the_Sirens2000

College Algebra
A new employee at a sales company is offered one of three different possible salary packages, A, B and C. The new employee will work 15 hours per week. Package A: $105 for the 15 hours of work each week. Package B: $60 plus a commission of 8% of all sales during the week. ...
Friday, November 28, 2014 by Mang

Algebra
Sarah has two part-time jobs and needs to earn at least $300 total per week. Job A pays her $10 an hour and job B pays $7.50 an hour. Wite an equality that represents this scenario.
Friday, November 28, 2014 by Mohammed Al Subirri

algebra
A fuel storage tank has one supply pump and two identical outlet pumps. With one outlet pump running, the supply pump can increase the fuel level in the storage tank by 8450 gallons in 30 minutes. With both outlet pumps running, the supply pump can increase the fuel level in ...
Thursday, November 27, 2014 by lala

algebra
A motorboat traveling a distance of 225 miles in 5 hours while traveling with the current. Against the current, the same trip took 9 hours. Find the rate of the boat in calm water and the rate of the current. rate of boat___ mph rate of current___ mph
Thursday, November 27, 2014 by lala

algebra
A marketing company asked 100 people whether they liked a new skin cream and lip balm. The company found that 80% of the people who liked the new skin cream also liked the new lip balm, and that 50% of the people who did not like the new skin cream liked the new lip balm. If ...
Thursday, November 27, 2014 by Jer

algebra
A goldsmith has two gold alloys. The first alloy is 30% gold; the second alloy is 80% gold. How many grams of each should be mixed to produce 10 grams of an alloy that is 40% gold? amount of 30% gold ___ g amount of 80% gold ___ g
Thursday, November 27, 2014 by Jer

Algebra 2 honor
a souvenir shop sells about 300 coffee mugs per month for $7.50 each. the shop owner estimates that for each $0.75 increase in the price, he will sell about 15 fewer coffee mugs per month. a. how much should the owner change for each mug in order to maximize the monthly income...
Thursday, November 27, 2014 by Michena

algebra 2
16x^2=56x
Thursday, November 27, 2014 by anonymous

algebra
Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.
Thursday, November 27, 2014 by Brianna

Algebra
Write a system of equations to model the problem and solve the system: The sum of two numbers is 156. What number is 28 more than the second number. What are the numbers?
Thursday, November 27, 2014 by Brianna

Algebra
Write a system of equations to model the problem and solve the system: Benjamin has nickels and dimes and his toy bank he has a total of 45 coins the total value of $3.60. How many coins of each kind does he have?
Thursday, November 27, 2014 by Brianna

Algebra
Write a system of equations to model the problem and solve the system: Benjamin has nickels and dimes and his toy bank he has a total of 45 coins the total value of $3.60. How many coins of each kind does he have?
Wednesday, November 26, 2014 by Brianna

Algebra
Write a system of equations to model the problem and solve the system: The sum of two numbers is 156. What number is 28 more than the second number. What are the numbers?
Wednesday, November 26, 2014 by Brianna

algebra
Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.
Wednesday, November 26, 2014 by Brianna

Coordinate Geometry (Algebra 1)
Line segment RS is perpendicular to line segment PQ, and the coordinates are R(4, -5), S(-8, 4), P(0, 6), and Q(-3, y). What is the value of y?
Wednesday, November 26, 2014 by Kimora

Algebra
A community college campus plans to construct a rectangular parking lot on land bordered on one side by a highway. There are 640 feet of fencing available to fend the other three sides. Let x represent the length of each of the two parallel sides of fencing. a) Express the ...
Wednesday, November 26, 2014 by Shannon

Algebra
Find a mathematical model representing the statement. (Determine the constant of proportionality.) v varies jointly as p and q and inversely as the square of s. (v = 2.1 when p = 4.2, q = 5.4 and s = 2.4.) v =
Tuesday, November 25, 2014 by angie

algebra
Tarot cards are used for telling fortunes, and in a reading, the arrangement of the cards is as important as the cards themselves. How many different readings are possible if three cards are selected from a set of seven Tarot cards?
Tuesday, November 25, 2014 by Anonymous

Algebra
A fuel storage tank has one supply pump and two identical outlet pumps. With one outlet pump running, the supply pump can increase the fuel level in the storage tank by 8450 gallons in 30 minutes. With both outlet pumps running, the supply pump can increase the fuel level in ...
Tuesday, November 25, 2014 by Sally

Algebra
I can find the finite differences, but how do I find the number of birds in July? owl.bcpnet. net/Algebra%202/ch6/section09/problem_so​lving.pdf
Tuesday, November 25, 2014 by Anonymous

Pre algebra
My problem says The cost of a cell phone for one month is a linear function of the numbers of minutes used. The total cost for 20, 35, and 40 additional numbers Re shown. Then it gives a table where it's 20/48$, 35/54$ and 40/56$ The first question is , Find the linear ...
Monday, November 24, 2014 by Alyssa

Algebra math Question
Find the dimensions of the rectangle meeting the specified conditions. The perimeter is 352 feet and the length is 4 1/2 times the width. width ft length ft
Monday, November 24, 2014 by LIYAH

Algebra
99 inch pipe is cut into two pieces. One is two times the length of the other. Find the lengths of the two pieces
Monday, November 24, 2014 by Anonymous

Algebra math Question
Find the dimensions of the rectangle meeting the specified conditions. The perimeter is 20.4 millimeters and the length is 2.4 times the width. (Round your answers to one decimal place.) width mm length mm
Monday, November 24, 2014 by LIYAH

Algebra
A small software company invests $30,000 to produce a software package that will sell for $64.95. Each unit can be produced for $42.25. (Round your answers to the nearest whole number.) (a) How many units must be sold to break even? units (b) How many units must be sold to ...
Monday, November 24, 2014 by ada

algebra
give the slop of each line and then determine whether two lines are parallel, perpendicular, or neither parallel nor perpendicular. 2x+5y=5, 4x+10y=0
Monday, November 24, 2014 by Chandresh

Algebra
A small software company invests $30,000 to produce a software package that will sell for $64.95. Each unit can be produced for $42.25. (Round your answers to the nearest whole number.)
Monday, November 24, 2014 by ada

algebra
Soybean meal is 14% protein, cornmeal is 7% protein. how many pound of each should be mixed together in order to get 280-lb mixture that is 13% protein?
Monday, November 24, 2014 by Chandresh

algebra 2
Can u please help me on this question.Simplify 1.) √a/b×√a^2/b^2
Monday, November 24, 2014 by Janet

Algebra
y=-2/3+2;(9,3) and y=1/4*-2;(8,-1) what are the steps in solving this equation and what does it mean for on line to be perpendicular or another?
Monday, November 24, 2014 by joann

Algebra
find the domain and range of y=f(x) {4 if -6</= x< -2 f(x)={absolute value of x if -2</= x< 8 {cubed root of x if 8</= x</= 14 it is piecewise, I am completely lost on how to even set up this function.
Monday, November 24, 2014 by Kayla

algebra
someone know about adding and subtracting denominator
Monday, November 24, 2014 by steven

algebra
Perform the indicated operation y/y-5+5/5-y
Monday, November 24, 2014 by steven

algebra
mrs scott bought some silk at $29.50 a yard and had $12 dollars left. if she had bought twice as much silk at $19.75 cent a yard she would have need $28 more to pay for it. how many yards did she buy and how much money had she
Monday, November 24, 2014 by caleb

algebra
Elsie took all her cans and bottles from home to the recycling plant. The number of cans was one more then four times the number of bottles. She earned 12 cent for each bottle and 10 cent for each can, and ended up earning $2.18 in all. How many cans and bottles did she recycle ?
Sunday, November 23, 2014 by kae

algebra
Ariel bought several bags of caramel candy and taffy. the number of bags of taffy was 5 more than the number bags of candy. taffy bags weigh 8 oz each and caramel bags weigh 16 oz each.the total weight of the bags was 400 oz. how many bags of candy did she buy?
Sunday, November 23, 2014 by kae

algebra
A motorboat traveling a distance of 225 miles in 5 hours while traveling with the current. Against the current, the same trip took 9 hours. Find the rate of the boat in calm water and the rate of the current. rate of boat mph rate of current mph
Sunday, November 23, 2014 by Jer

algebra
Solve by using a system of equations. The number x of MP3 players a manufacturer is willing to sell is given by x = 20p − 1500, where p is the price, in dollars, per MP3 player. The number x of MP3 players a store is willing to purchase is given by x = −4p + 900, ...
Sunday, November 23, 2014 by Jer

algebra
Flying with the wind, a plane traveled 390 miles in 3 hours. Flying against the wind, the plane traveled the same distance in 5 hours. Find the rate of the plane in calm air and the rate of the wind. rate of plane ? mph rate of wind ? mph
Sunday, November 23, 2014 by Jer

Algebra 2
Solve Quadratic System x^2+y^2=2 x^2-6y=10 Please show work!!!
Sunday, November 23, 2014 by Elisa

algebra
If it takes 4 ounces of insecticide to make 2/1/2 gallons of garden spray, how much spray can be made with 6 ounces of insecticide My answer was x=24 is it right???
Sunday, November 23, 2014 by ariana

Algebra
Find the values of a, b, and c such that the equation y=ax^2+bx+c has ordered pair solutions (-3,-22), (-1,2) and (3,2) a = 2; b = 8; d = 4 a = -2; b = 4; c = 8 a = 2; b = 4; c = 8 a = -2; b = 8; c = 4
Sunday, November 23, 2014 by leslie

Algebra
Solve the problem using matrices. John has a jarful of quarters and nickels. There are 84 coins in the jar. The value of the coins is $13.00. How many of each type of coin are there? A) 49 quarters ; 35 nickels B) 44 quarters; 40 nickels C) 79 quarters; 5 nickels D) 40 ...
Sunday, November 23, 2014 by Heaven

Algebra 2
Solving Quadratic System x^2+4y^2=16 x^2+y^2=4 Please SHOW WORK I'm having trouble solve this...
Sunday, November 23, 2014 by Mesa

Algebra 2
Solve Quadratic System x^2+y^2=2 x^2-6y=10 Please SHOW WORK I'm having trouble
Sunday, November 23, 2014 by Mesa

Algebra 2
Quadratic Systems y=3x^2-5 x-y=3 Could you tell me the answer.I want to make sure I'm right and could you show work
Sunday, November 23, 2014 by Stephy

Algebra
In how many wYs can a chairperson and a vice chairperson be selected from a committee of 15 senators?
Sunday, November 23, 2014 by Maxine

Algebra
Please help me to solve this Radical Expressions and equations word problem. Here is the question: Find the perimeter and the area of the rectangle. Here are the measurements: length is (sqrt 6+2) and the width is (sqrt 6-2)
Saturday, November 22, 2014 by Jay

Algebra
Please help me to solve this Radical Expressions and equations word problem. Here is the question: Surveying. The length of each lot line of a swimming pool complex is shown. Find the exact perimeter of the irregular shaped lot. Then approximate the perimeter to the nearest ...
Saturday, November 22, 2014 by Jay

algebra
the last 10% of CRYPTOGRAM II DON'T GET THIS????
Saturday, November 22, 2014 by ariana

Algebra
I'm studying for a test so I want to make sure I'm doing these problems right. Numerator (-5a exponent -2) Denominator b3 All to the -1 exponent For a= -4. And b=2 My answer I get is 1/10 is the right ? -16 with -1/2 exponent Would the answer be -4? 2-3 square root of 14 Would...
Saturday, November 22, 2014 by Lexi

algebra
the ratio of the weight of an object on jupiter to its weight on earth is 8 to 3. how much would a 100 pound person weigh on Jupiter? i`ll tell you the answer when am done solving so you can check if am right
Saturday, November 22, 2014 by ariana

algebra
The ration of oil to vinegar in a certain salad dressing is 8:5. how much oil must be blended with 7 liters of vinegar for that recipe?
Saturday, November 22, 2014 by ariana

algebra
A car travels 350 miles on 20 gallons of gallons of gasoline.How many gallons will be used to travel 875 miles under the same conditions
Saturday, November 22, 2014 by ariana

algebra
If pencils sell at 6 for 59 cents,how many pencils can be bought for $2.95?
Saturday, November 22, 2014 by ariana

algebra
If there are 560 calories in 8 ounces of meat, how many calories are in 3 ounces of meat?
Saturday, November 22, 2014 by ariana

algebra
If a 2 cubic feet of sand weight 90 pound, how much do 5 cubic feet of sand weight?
Saturday, November 22, 2014 by ariana

algebra
16. Solve y = log3243. A. y = 0 C. y = 5 B. y = 3 D. y = 243 3. Which of the equations below describes the graph shown here? A. y = x – 2 C. y = –x + 2 B. y = x + 2 D. y = –x – 2 11. If the triangles in the following figure are proportional, what is the length of side ...
Saturday, November 22, 2014 by jessica

Algebra 2
Quadratic systems x^2+y^2=10 2y+y=4 the first part I got this x^2+(4-2x)^2=10 and I don't know what steps comes next. could you show work on how to do it I'm so confuse on this problem.
Saturday, November 22, 2014 by miguel

algebra
simplify the expression show your work 3x(4x^4-5x)
Saturday, November 22, 2014 by andy

algebra
You deposit $3000 in an account earning 7% interest compounded continuously. The amount of money in the account after years is given by A(t)=3000 e^(0.07 t) . How much will you have in the account in 5 years? $ Round your answer to 2 decimal places. How long will it be until ...
Saturday, November 22, 2014 by christina

Algebra
At the beginning of each year, Joe invests $10,000 in his retirement fund. The fund gives 10% interestm compouned annually. At the end of the third year, how much money will be in Joe's fund?
Friday, November 21, 2014 by Lilly

Algebra
What is the range of the function f(x)=3-2*51^x? Give your answer as an interval.
Friday, November 21, 2014 by Rachel

Algebra Help please!
I already posted this question,and Henrey answered it. I just wanted to clarify a few things to make sure I am on the right track Problem: Joanie takes a $6,000 loan to pay for her car. The annual interest reate on the loan is 12%. She makes no payments for 4 years, but has to...
Friday, November 21, 2014 by Trish Goal

Algebra 2
More About Complex Numbers squ. root 5+i/squ. root 5-i I don't know if you understand this equation, but could you help me.
Friday, November 21, 2014 by Ariana

Algebra 2
Solving Quadratic Systems x^2+y^2=10 2x+y=4 Please show work I need to know how to do it
Friday, November 21, 2014 by Genesis

Algebra 2
Solving Quadratic System y=4x+1 2x-y+1 Please show work!!!
Friday, November 21, 2014 by Alicia

Algebra 2
Solving Quadratic Systems x+2y=4 3x-y=5 Please show work!!!
Friday, November 21, 2014 by Alicia

algebra 2
12x^2-2x-2=0
Friday, November 21, 2014 by anonymous

Algebra
y=25x+500 solve for x solve for y
Friday, November 21, 2014 by karen

algebra
The stopping distance s of a car varies directly as the square of its speed v. If a car traveling at 30 mph requires 81 ft to stop, find the stopping distance for a car traveling at 55 mph.
Friday, November 21, 2014 by lakpa

algebra
Which of the following points lies on the circle whose center is at the origin and whose radius is 10 (-6,4) (/10,/10) (6,-8)
Friday, November 21, 2014 by steven

algebra
The length of a rectangle is 3 more than twice the width. The area of the rectangle is 119 square inches. What are the dimensions of the rectangle? If x = the width of the rectangle, which of the following equations is used in the process of solving this problem?
Friday, November 21, 2014 by steven

algebra
Solve this quadratic equation x^2 + 5x + 3 = 0
Friday, November 21, 2014 by steven

college algebra
An investment initially worth $5300 earns 7.7% annual interest, and an investment initially worth $8000 earns 5.6% annual interest, both compounded annually. How long will it take for the smaller investment to catch up with the larger one?
Friday, November 21, 2014 by Brett

algebra 2
Simplify. 1.) 2•√25/26 2.) √a^2/b^5 3.) √a/b √a^2/b^2
Friday, November 21, 2014 by Janet

Algebra II
I have some questions regarding syntheetic division. f(x) = x3 - 9x + 3
Friday, November 21, 2014 by Rashad

algebra
How do you find the unit rate for ....861 bagels divided by 3 days
Thursday, November 20, 2014 by charlie

Algebra
If $31,500 is invested at 6.8% for 30 years, find the future value if the interest is compounded daily
Thursday, November 20, 2014 by Anthony

algebra
Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=-2 Is f(x) =0 ?
Thursday, November 20, 2014 by Ernie

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Homework Help: Math

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