Wednesday
December 7, 2016

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

Algebra
I am 6 years older than my wife. Our twins go to the local comprehensive school. One of the twins noticed that the sum of their ages divided into the product of my age and the age of my wife is 63. How old am I?
Wednesday, December 7, 2016 by Scott

algebra 1
Name the point of intersection for the following system, if it exists. 4x – 3y = -3 3x – y = -6
Wednesday, December 7, 2016 by Anonymous

Algebra
The total tickets sales for a highschool basketball game were $2.00. The tickets price for students was $2.25 less than the adult ticket price. The number of adults tickets sold was 230, and the number of students tickets sold was 180. What was the price of the adults ticket?
Wednesday, December 7, 2016 by Karen

Algebra
A laboratory technician wishes to mix a 70% saline solutio and a 20% solution to prepare 500ml of a 40% solution. What amount of each solution should be used?
Wednesday, December 7, 2016 by Raquel

algebra
Apple Company has releases its new i-phone in the market with a suggested retail price of Php 35, 500. Many consumers are waiting for this model because of its unique and more advanced features. You are working as a marketing manager of the i-store, one of its dealer stores. ...
Wednesday, December 7, 2016 by heeeeeeeeeelp

Algebra
Four times the sum of 9 and some number is 60. What is the number?
Tuesday, December 6, 2016 by Todd

Algebra
Find approximate solutions rounded to three decimal places for ?f(x)=x^2-5x+3
Tuesday, December 6, 2016 by David

algebra
The price of products may increase due to inflation and decrease due to depreciation. Derek is studying the change in the price of two products, A and B, over time. The price f(x), in dollars, of product A after x years is represented by the function below: f(x) = 12500(0.82)x...
Tuesday, December 6, 2016 by aloha

Algebra
Find the first 4 terms of the recursively defined sequence. a subscript 1 =9?, a subscript 2 =9?, a Subscript n+1=a Subscript n +a Subscript n-1 Are the first four terms A)9,9,18,18 B)9,9,9,27 C)9,9,81,729 D)9,9,18,27
Tuesday, December 6, 2016 by David

Algebra
Suppose that a polynomial function of degree 5 with rational coefficients has? 6, ?2+4i, 4?sqrt2 as zeros. Find the other zeros. Thank you!
Tuesday, December 6, 2016 by Aleesha

Algebra
Write an equation for a function that has a graph with the given characteristics. The shape of y=^3 squareroot x is shifted 7.3 units to the left. This graph is then vertically stretched by a factor of 9. ?Finally, the graph is reflected across the ?x-axis. Thanks
Tuesday, December 6, 2016 by Joseph

Algebra
Find a rational function that satisfies the given conditions. Vertical asymptotes x=-2,x=7 Horizontal asymptote y=7/2 ?x-intercept ?(?5?, ?0)
Tuesday, December 6, 2016 by Kristina

Algebra
Write a? slope-intercept equation for a line passing through the point (4,?2) that is parallel to the line 4x+7y=8. Then write a second equation for a line passing through the point (4,?2) that is perpendicular to the line 4x+7y=8. Thank you!
Tuesday, December 6, 2016 by Aleesha

Algebra
A projectile is thrown upward so that its distance above the ground after t seconds is h(t)=-16t^2 + 570t. After how many seconds does it reach its maximum? height?
Tuesday, December 6, 2016 by Kristina

Algebra
In 2000, 520,000 acres of farmland in a region were devoted to growing nuts. By 2013?, the number of acres used to grow nuts had increased to 810,000. Find the average rate of change in the number of acres in a region used to grow nuts from 2000 to 2013. The average rate of ...
Tuesday, December 6, 2016 by Aleesha

K12
Is anyone in K12 here or FLCCA that could help me in Algebra 2???
Tuesday, December 6, 2016 by becca

algebra
Solve each system of eaquations by graphing or using a table. 5x-y=12 3x+2y=12
Tuesday, December 6, 2016 by ram

Algebra 2
For each function, identify the horizontal translation of the parent function, f(x)=x^2. Then graph the function. 19. y=(x-4)^2 I need to figure out how to solve this problem, so steps would be appreciative! PLEASE don't leave websites for me to check out, I guarantee you ...
Tuesday, December 6, 2016 by Mike

Algebra 2
Select Yes or No to state whether each data set is likely to be normally distributed. the numbers on the jerseys of the players in a basketball league my answer:yes the heights of the players in a basketball league my answer:yes the lengths of the basketball courts in a ...
Tuesday, December 6, 2016 by Bella

Algebra 2
Times for an ambulance to respond to a medical emergency in a certain town are normally distributed with a mean of 450 seconds and a standard deviation of 50 seconds. Suppose there are 160 emergencies in that town. In about how many emergencies are the response times expected ...
Tuesday, December 6, 2016 by Bella

Algebra II
PLEASE HELPPPPPP What are the possible numbers of positive, negative, and complex zeros of f(x) = x4 + 3x3 ? 2x2 + 1? (6 points) Positive: 2 or 0; negative: 2 or 0; complex: 4, 2, or 0 Positive: 2, or 0; negative: 4, 2 or 0; complex: 4, 2, or 0 Positive: 2 or 0; negative: 2 or...
Tuesday, December 6, 2016 by HHELLPPPPPP

Algebra
How many liters of a 25% antifreeze solution must be mixed with 4liters of a 60%antifreeze solution to make a mixture that is 45%antifreeze? I'm not sure of the correct formula to use.
Tuesday, December 6, 2016 by Terri

Algebra
An object is dropped from a height of 1000 cm above the ground after t seconds is given by the formula below- d = 10tsquare + 1000 How far above the ground is the object, when it has fallen for 6 seconds? Please show your work.
Tuesday, December 6, 2016 by Shipra

Algebra 1
Suppose y varies directly with x, and y=25 when x=-140. What is the value of y when x=36 A)140 B)165 C)201.6***** D)176
Tuesday, December 6, 2016 by Math

Algebra
I need help understanding how to cross-multiply addition of inverse functions. I'm given this, 1/p+1/(p-45) = 1/30 The answer goes to p^2-105p+1,350 = 0. My method has been adjusting the ratios of the numerator and denominators to give, [30(p-45)]/[30p(p-45)]+[30p]/[30p(p-...
Monday, December 5, 2016 by Justin

Algebra
Find an equation of a parabola with a vertex at the origin and directrix y =–4
Monday, December 5, 2016 by Anonymous

Pre Algebra Review
Thirty-five students belong to the science club. This 1/4 the number in the 5 sections of the eighth grade. How many students are in the eight grade? How many in each section if each section has the same number of students?
Monday, December 5, 2016 by Bryan

Algebra
david makes and sells chairs. The function p(x)=-10x^2+100x-210, graphed below, indicated how much profit he makes in a month if he sells the chairs for 10-x dollars each. what should david charge per chair to make the maximum profit, and what is the maximum profit he can make...
Monday, December 5, 2016 by Starcatcher

Algebra
Find an equation of a parabola with a vertex at the origin and directrix y= -4
Monday, December 5, 2016 by Anonymous

Algebra
The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola. The microphone itself is placed on the focus of the parabola. If the parabola is 60 inches wide and 30 inches deep, how far from the vertex should the microphone be placed?
Monday, December 5, 2016 by Anonymous

algebra
A boy spent one-half of his money for a book and one-third of his money for a pen. The remaining $2.25 he saved. How much money did he have originally?
Monday, December 5, 2016 by sid

Algebra
In a basketball game, Sam scored 34 pts, consisting only of 3 point shots and 2 point shots. He made a total of 15 shots. How many shots of each type did he make?
Monday, December 5, 2016 by Sydney

Algebra 2
Write an equation for the translation of x 2 + y 2 = 16 by 8 units left and 3 units down.
Monday, December 5, 2016 by Brandy

Algebra
Please Check My Anwsers What is the slope of the line in the graph show below? /content/media/390571-1122011-42500-PM-1​076804072.png A) -2 B) -1 C) 1 (My Choice) D) 2 Find the slope of a line that passes through (–2, –3) and (1, 1) A) 1/3 B) 1 C) 2 (My Choice...
Monday, December 5, 2016 by Anoamis =D

algebra, mathematics
The sum of two numbers is 33. Twice the smaller number from the larger number gives 15. Find the numbers
Monday, December 5, 2016 by Justice

Algebra
Rosa is 14 years older than her sister Amy. 3 years ago, she was 3 times as old as Amy. How old are they now?
Monday, December 5, 2016 by Raquel

Linear Algebra
For the matrix A below, find a value of k so that A has two basic eigenvectors associated with the eigenvalue ? = 3. A = [?3 ?18 54 204 0 3 ?18 ?54 0 0 ?3 k 0 0 0 3] k = ? I'm specifically having troubles reducing this and knowing what it'll look when there are 2 ...
Sunday, December 4, 2016 by Alistair

Algebra
Can you please help? I am working System of Equations. I need to find the solution of each of the following systems: How do I solve...thank you Y = 5x -3 and Y = -3x +5
Sunday, December 4, 2016 by Jaraud

Algebra
okay...I just figured out the two numbers...but not the two equations: x+4x = 25 5x = 25 x=5...so two numbers are 5 and 20 thanks for your help
Sunday, December 4, 2016 by Leroy

Algebra
Thank you...I forgot to add the other part of the question.. The sum of two number equal 25 The second number is 4 times larger than the first number. Write the two equations AND what are the two numbers. I have x+4x =25 but not sure what the two equations would be? Please ...
Sunday, December 4, 2016 by Leroy

Algebra
The sum of two numbers equal 25. The second number is 4 times larger than the first number. What are the two numbers
Sunday, December 4, 2016 by Leroy

Algebra
Identify the type of conic section that has the equation 9x^2 + 25y^2 =225 and identify its domain and range.
Sunday, December 4, 2016 by Anonymous

Algebra
June has $1.95 in dimes and nickels. She has a total of 28 coins. How many dimes and how many nickels does she have?
Sunday, December 4, 2016 by Samantha

math algebra
A tax free municipal bond pays 4.75% compounded continuously. What is the value of a $2,000 bond after 30 years? Round your answer to the nearest cent. [Hint- A=P e^rt where P= present(initial) value, A= future value, r= annual rate, and t= number of years] P.S.The rt is an ...
Sunday, December 4, 2016 by tom

algebra
The diagonal and the longer side of a rectangular plot are together three times the length of the shorter side. If the longer side exceeds the shorter side by 140 ?feet, what is the area of the? plot?
Sunday, December 4, 2016 by jacob

algebra
A man goes 3 km north and 4 km east.Find how far away is he from his initial position?
Sunday, December 4, 2016 by swapan

ALGEBRA PLZ HELP!1
I've read on how to do it and yet I still don understand thsi question On a given blueprint, 1 inch = 12 feet. If the dimensions of a recreation room on the blueprint are 2 inches × 1.75 inches, what are its actual measurements?
Sunday, December 4, 2016 by Kaleb

algebra
how do I write 2.5=h3o^+ in scientific form?
Saturday, December 3, 2016 by sabrina

Algebra 2
Evaluate the function when x=1. f(x)=4x-2. Write the input and output as a set of ordered pairs, and identify the domain and range of the ordered pair. (6 points) Ordered Pair: Domain: Range: Write an equation of direct variation that passes through the point (9,-1). (4 ...
Saturday, December 3, 2016 by JojO

algebra
Find the equation for the graph of the path of a point? P(x,y) that moves such that? P(x,y) is the same distance from the point ?(14?,0) and the? y-axis.
Saturday, December 3, 2016 by jacob

Algebra
A student has a mean score of 89 on 5 tests. what will be the new mean if she scores a 95 on the next test? (89+95)/6=X
Saturday, December 3, 2016 by Taylor

Algebra
If n is the larger of the two consecutive numbers, write an expression for the sum of these two numbers.
Saturday, December 3, 2016 by BLAH

Algebra
A student has a mean score of 89 on 5 tests. what will be the new mean if she scores a 95 on the next test? (89+95)/6=X
Saturday, December 3, 2016 by Taylor

intermediate algebra
A certain bacteria doubles every day. If there were 400 in the original culture, how many would be present after 3 days?
Saturday, December 3, 2016 by xxxx

Algebra
8-3/4c=5
Friday, December 2, 2016 by Angie

Algebra
8-3/4c=5
Friday, December 2, 2016 by Angie

Algebra 2
Find the number of units that produces a maximum revenue given by R = 290x?0.2x 2, where R is the total revenue in dollars and x is the number of units sold. Answer in units of units.
Friday, December 2, 2016 by Anna Alkine

Algebra
use substitution to determine if (5,1) is a solution to the inequality 2x+6y<12
Friday, December 2, 2016 by Melesa Engram

Algebra
For questions 1-5 solve the equation. 1.-2v-7=23 (A)15 (B)8 ? (C)-8 (D)-15 2. X/3-10=-12 (A)-6 (B)-66 (C)6 (D)66? 3. d/3+10=7 (A)51 (B)20 ? (C)0 (D)-9 4. 2(2-2x)=-3x (A)-4 (B)4 ? (C)6 (D)0 5. 2.9n+1.7=3.5+2.3n (A)3 (B)-3 (C).3 (D)1 For questions 6-7, Simpifly the expression. 6...
Friday, December 2, 2016 by J

algebra
The function h(t) = 200 - 16t represents the height of a ball droppped from 200 feet. How far had the ball traveled after falling for 11 seconds?
Friday, December 2, 2016 by reda

algebra
Janet told a secret to 4 friends. The next day, each of Janet's friends told the secret to 3 more people. The process continues for multiple days. Which function represents the number of people who will know the secret on the nthnth day? A. P(n)=3n+4P(n)=3n+4 B. P(n)=4(3)...
Friday, December 2, 2016 by bonny

Algebra 1B
24. Solve the system of equations algebraically. Show all of your steps. Y = x^2 + 2x and y = 3x + 20. Btw this is a workpad problem. I just need to be put in the right direction, on how to do it.
Friday, December 2, 2016 by Ashley

Algebra 1B
A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = -0.04x^2 + 8.3x + 4.3, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above ...
Friday, December 2, 2016 by Abby

9th grade algebra
The high temperatures in Jacksonville, Florida for July 1 – July 15 are shown below. 80, 73, 72, 76, 84, 86, 82, 73, 81, 84, 78, 85, 87, 84, 70 Identify the following, only using numbers. The median is . The minimum is . The maximum is . The lower quartile is . The upper ...
Friday, December 2, 2016 by harrison

Algebra
Suppose that an architect is constructing a building with a rectangular front that is to be 60 feet high. About how long should the front be if he wants the appliance of a golden rectangle? (Assume w = 60 ft and that you are looking for l. ) Round to 2 decimal places.
Friday, December 2, 2016 by Saray

algebra 2a solving systems using matrices
write the system of equations represented by the matrix [0 1 2 4] [-2 3 6 9] [1 0 1 3] a: x+2y=4 -2x-3y+69=0 x+y=3 b: x+2y=4 -2-3y+6=9 x+y=3 c: y+2z=4 -2x+3y+6z=9 x+z=3 d: x+2z=4 -2x-3y+6=9 think its A
Friday, December 2, 2016 by mia

Algebra
Divide by synthetic division (x^4-15x^2 +38x-60)/(x-3) Can someone please help with this.
Thursday, December 1, 2016 by Billy

Algebra
Divide by long division (4x^3 - 2x^2 - 8x+3)/(x^2 +5) Please help I can't figure this out.
Thursday, December 1, 2016 by Jacob

Pre Algebra
Allie needs 4 2/3 yards to finish sewing the edges of a blanket. She only has 3/4 of that amount. how much lace does Allie have?
Thursday, December 1, 2016 by Jordan

Algebra 7th grade
Your middle school is having a fall carnival. Admission into the carnival is $3 and each game inside the carnival costs .25 cents.Write and inequality that represents the possible number of games that can be played having 10 dollars. What is the maximum number of games that ...
Thursday, December 1, 2016 by please check my work

Algebra
Four times the sum of 6 and a number is 6 increased by the same number. Find the number
Thursday, December 1, 2016 by Shaun

Algebra
) An inlet pipe can fill an empty tank in 5 hours by itself, and an outlet pipe can drain the same tank when full in 7 hours by itself. If the tank is two-thirds full when the valves for both pipes are opened, how many minutes will it take to fill the tank?
Thursday, December 1, 2016 by Alyssa

math algebra
A tax free municipal bond pays 4.75% compounded continuously. What is the value of a $2,000 bond after 30 years? Round your answer to the nearest cent. [Hint- A=P e^rt where P= present(initial) value, A= future value, r= annual rate, and t= number of years] P.S.The rt is an ...
Thursday, December 1, 2016 by caroline

algebra 2
The given series has six terms. What is the sum of the terms of the series? 10 + 25 + 40 + . . . + 85
Thursday, December 1, 2016 by Anonymous

math algebra
The amount A, of 70 grams of a certain radioactive material remaining after t years can be found by the equation A=70(0.62)^t. When will 10 grams remain?
Thursday, December 1, 2016 by laura

algebra 1
Harold's car has a fuel tank with 12 gallons of fuel in it. The fuel efficiency of Harold's car is 25 miles per gallon. Write an equation to represent the amount of fuel remaining, f, in Harold's car after driving m miles.
Thursday, December 1, 2016 by amy

Algebra
1. The bill at the restaurant is 58.50, and Mrs. Johnson wants to leave a 15% tip. Approximately how much money should she leave? A. about $15.00 B. about $9.00 •• C. about $6.00 D. about $11.00 2. What percent of 50 is 12.5? A. 4% B. 25% •• C. 40% D. 15% 3...
Thursday, December 1, 2016 by Beatrice

Algebra
What is the algebraic expression for the following word phrase: the product of 4 and x. A: 4+x B: 4x C: 4-x D: 4/x I think it's A. Am I right?
Thursday, December 1, 2016 by Anon

Algebra 2
What is the sum of the arithmetic series 5 (sigma sign) n-1 (3n-2)?
Thursday, December 1, 2016 by Dani

Algebra
The difference between 5 times a number and 20 equals the sum of the number and 40. Find the number
Thursday, December 1, 2016 by Ryan

Algebra
(3x-2)(3x+)-(x-4)square.
Wednesday, November 30, 2016 by Komal yaseen

Algebra
The length of a rectangle is 2 ft less than three times the width. The area is 60 ft SQUARED. Find the length of the rectangle
Wednesday, November 30, 2016 by Anonymous

Algebra 1
3x + y = -11 6x - 2y = -2
Wednesday, November 30, 2016 by Anonymous

Algebra
A taxi charges 1.80 per mile with an initial fee of 12.00 how far can you go with 50.00
Wednesday, November 30, 2016 by Madison

math algebra
the product of two consecutive even numbers is 440. What is the sum of the numbers?
Wednesday, November 30, 2016 by laura

Algebra
Bob is making sandwiches for a school picnic. He is making these types: ham, cheese, and turkey. So far, he has made 12 ham sandwiches, 20 turkey, and 4 cheese. What combination can he make so that exactly 1/5 of the sandwiches are cheese?
Wednesday, November 30, 2016 by Me

Algebra
Two number cubes have sides numbered 1-6. If both cubes are rolled at the same time, what is the probability that the numbers on both cubes will be greater than 3?
Wednesday, November 30, 2016 by Me

Algebra
Suppose a parabola has an axis of symmetry at x = -2, a minimum height at -6, and passes through the point (0, 10). Write the equation of the parabola in vertex form.
Wednesday, November 30, 2016 by Anonymous

Algebra
The equation h= -16t^2 + 32t + 9 gives the height of a ball, h, in feet above the ground,at t seconds after the ball is thrown upward.How many seconds after the ball is thrown will it reach its maximum height? What is its maximum height?
Wednesday, November 30, 2016 by Anonymous

Algebra
A gardener is making a planting in the shape of a trapezoid. It will have 41 plants in the front? row, 37 in the second? row, 33 in the third? row, and so on. If the pattern is? consistent, how many plants will there be in the last? row? How many plants are there? altogether? ...
Wednesday, November 30, 2016 by Alisha

Algebra
Find the sum: 8 over sigma symbol, k=1 below the symbol and (-1)^k+1,5k to the right of it. Sorry the format is off, but I didnt know how else to type it in. Thank you.
Wednesday, November 30, 2016 by Alisha

Algebra 2
Complex numbers are written in the form a + bi. What does i represent? -1 0 1 sqrt-1 **my choice
Wednesday, November 30, 2016 by JJ

college algebra
James can detail a car? by himself in 60 minutes. Manny does the same job in 55 minutes. How long will it take them to detail a car working together
Wednesday, November 30, 2016 by Amberlyn

Algebra (Please Check My Answers)
CCA Unit 4 Lesson 11 3. If a number is not a rational number, then it is ______. ~ an integer ~ and irrational number*** ~ a whole number ~ a radical 4. James attached a diagonal brace across a rectangular frame that measures 6 feet by 8 feet. What is the length of the ...
Wednesday, November 30, 2016 by A Girly Girl :)

Algebra
A physics student stands at the top of a hill that has an elevation of 37 meters. He throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the equation y = -0.02x^2 + 0.8x + 37, where x is ...
Wednesday, November 30, 2016 by Mathew

Algebra 1 B
2. How is the graph of y = -6x^2 + 4 different from the graph y = -6x^2? A. It is shifted 4 units to the left. B. It is shifted 4 unites to the right C. It is shifted 4 units up. *** D.It is shifted 4 units down. 3. A model rocket is launched into a large field. The path of ...
Wednesday, November 30, 2016 by Abigail

Algebra
A grocery store makes a 20-pound mixture of almonds and cashew nuts. The store charges $4 per pound for almonds and $5.50 per pound for cashews. The total value of the mixture is $92. Write a system to find how many pounds of each type of nut are in the mixture.
Wednesday, November 30, 2016 by Nola

math algebra
The lengths of the three sides of a right triangle are given by three consecutive even integers. Find the lengths of the tree sides.
Tuesday, November 29, 2016 by laura

Linear Algebra
Let L be the line with parametric equations x = 1?2t y = 3+3t z = ?1?3t Find the shortest distance d from the point P0=(1, ?4, ?2) to L, and the point Q on L that is closest to P0. Use the square root symbol '?' where needed to give an exact value for your answer. Find...
Tuesday, November 29, 2016 by Ramit Rana

algebra
Suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of 11% per hour. Suppose also that a sample culture of 1000 bacteria is obtained from this population. Find the size of the ...
Tuesday, November 29, 2016 by rhonda

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Homework Help: Math