1. Algebra

    Rewrite the middle term as the sum of two terms and then factor completely. 25x^2+35x+12 Is the following true or false? x^2+2x-3=(x+1)(x-3) Can you show me how to do these two problems? Thank you for any help you can give me. If the middle is the sume of

    asked by kat311 on June 26, 2007
  2. Math

    Need help with the problem 25x^2=20x-4 Thank you!!

    asked by Sarah on December 1, 2010
  3. someone help

    my post is still on this page as algebra, could someone elaborate on what bobpursley tried to help me with. See your original post. I am guessing you are referring to your question 5)Simplify:(5x-4)^2 and your answer= 25x^2 - 16 (5x-4)^2 =(5x-4)(5x-4) =

    asked by erin on August 1, 2007
  4. Algebra

    1. Find the degree of the monomial 6p^3 q^2. A) 2 B) 3**** C) 5 D) 6 2. Simplify (7t^2+9)+(6t^2+8) A) t^2 +1 B) 13t^2+17 C) 13t^4+ 17**** D) 42t^2+72 3. Simplify 3n(4n^2 + 5n) A) 12n^3 + 15 n^2***** B) 7n^2+8n C) 12n^2 +15n D) 12n^2 +8n 4. Factor 18s-63 A)

    asked by Olaf on February 12, 2015
  5. math

    i'm studying for a test and i've just got a few questions.. 1-If x^2+8x+m has one double root then m=? and the vertex is? 2-I got -3-i(s.r)5 / 5 for this problem-> -15-(s.r)-125.. is that correct? 3-Is the answer for (5-3i)^2 -30i+ 16 ? 4-is the answer to

    asked by cici on February 25, 2009
  6. math

    how do I factor 20x+25x^2+4

    asked by ferrer on April 16, 2009
  7. how to determine the vertices of a hyperbola?

    y^2=25x^2+20x+3 anyone knows which way does it open?? and the location of its vertices??

    asked by wi on May 21, 2007
  8. Algebra

    simplify: [(2x^2+5x-6)/(5x^2+7x-6)]*[(20x^2-7x-3)/(6x^2-25x+4)]/[(4x^2-11x-3)/(6x^2-19x+3)]

    asked by Jeconiah on February 19, 2013
  9. Algebra-Please check

    5 - sqrt of 20x + 4 >= -3 5- 20x + 4 >= -3 5-4 - 20x >= -3 1 - 20x >= -3-1 -20x >= -4 x

    asked by Juliette on October 12, 2010
  10. Algebra

    simpliy the following: (a) {[4x^2-49]/[8x^3+27]} *{ [4x^2+12x+9]/[2x^2-13x+21]} (b) {[x^2+x-6]/[x^2+7x-6]}*{[20x^2-7x-3]/[6x^2-25x+4]}*{[4x^2-11x-3]/[6x^2-19x+3]}

    asked by Jeconiah on February 19, 2013
  11. math,correction

    Directions:Multiply Problem: ((x)/(3)+(3)/(4)) ((3x)/(4)-(3)/(5)) so the answer for it i got: ((20x^2+20x-36)/(80)) I worked it and I have what you have EXCEPT 29x instead of 20x. If you can't find the error, post your work and we can help you find it.

    asked by Jasmine20 on January 24, 2007
  12. algebra 2

    find all the zeroes of: x^5-3x^4-24x^3-72x^2-25x+75=0 5x^5-20x^4-40x^3-16x^2-45x+180=0 -3x^5+3x^4+9x^3-7x^2+12x=12 x^3-x^2-13x-13=0 x^3+x^2=15x-15 Thank you for any help...I'm desperate please help :(

    asked by nathalie on December 31, 2012
  13. Algebra

    25x^4-20x^2+3=0 = x= i sqrt3/5,-i sqrt3/5. I used the method complete the square. is this is correct

    asked by Anne on July 5, 2008
  14. Calc again sorry

    4) The graph of y = (x)/(1+25x^2) for x is greater than or equal to 0 has a horizontal tangent at x = what. So what I did was find the first derivative. I did the quotient rule and ended up with x50x - 1+25x^2 --------------- (1+25x^2)^2 I equated that

    asked by Samantha on November 5, 2008
  15. math

    5(3+4x)-6>=129 I get 2 different answers on this one. 15+20x-6>=129 15+20x-6+6>=129+6 15+20x>=135 15-15+20x>=135-15 20x>=120 20x/20>=120/20 x>=6 Is this worked out properly, are there any shortcuts?

    asked by barb on August 22, 2010
  16. Math

    Find the intersection of two lines. i have the answer just please tell me how it was made 4x-3y-4=0 , 4x+2y+5=0 -5y/-5 = 9/-5 y= 9/5 4x-3(-9/5)-4=0 5(4x+27/5-4=0) 20x+27-20=0 20x+7=0 20x/20=-7/20 x=-7/20 (-7/20, -9/5

    asked by Joy on July 1, 2014
  17. Calculus. Please help!

    Find the minimum value of the function f(x,y= 25x^2+3y^2+20xy+10x+4y+10 subject to the constraint 5x^2+4xy=1. I solved fx=50x+20y+10 fy=6y+20x+4 gx=10x+4y gy=4x Then what?

    asked by Carly on August 10, 2011
  18. math

    The graph of a reciprocal function of the form f(x)=1/ax+b where a is not equal to 0 and b is not equal to 0. Which is the equation of the original function f (x)? a)y=5.25x-2 b)y=-5.25x+2 c)y=-5.25x-2 d)y=5.25x+2

    asked by Alex on January 15, 2015
  19. math

    y=1/2x + 3/4 6x+8y=10 Only looking for X Step's in what i did 1.~6x+8(1/2x + 3/4)=10 2.6x+ 8/2x + 24/4 =10 3.(2)(6x+ 8/2x + 24/4 =10)(2) 4.12x+8x+ 24/4=20 5.20x+6=20 6. 20x=14 7. x= 14/20 I don't know what i did wrong. Please help me and if you don't

    asked by edgard on January 5, 2017
  20. algebra

    1)Simplify:(3x^0y^-4)(2x^2y)^3 answer=6x^6 over y 2)Simplify:2x^2y^5z^-4 over 8x^6yz^3 answer= y^4 over 4x^4z 3)Saturn is 1.4 x 10^9 kilometers away from the sun. If light travels 3.0 x 10^4 km per second,how long does it take light from the sun to reach

    asked by erin on August 1, 2007
  21. math,factoring,help

    Can someone please show me step by step how to do these. I've read the book and there examples and It is just not clicking. Directions: Factor each of the following polynomials completely Problem:#1 14x^2-20x+6 Directions:Find all positive values for "K"

    asked by Jasmine20 on January 31, 2007
  22. Algebra

    Solve:25x^4-20x^2+3=0 =(sqrt5/5),-(sqrt5/5),(sqrt15/5),(-sqrt15/5). Can you tell me which one is correct.This is a second post to the first one.

    asked by Anne on July 5, 2008
  23. math

    Tina has a pet sitting business. She charges a flat service fee of $20, plus $20 per day for each animal. If one of her customers spent less than $100 on one animal, which of the following inequalities could be used to solve for x, the number of days the

    asked by abella on December 7, 2018
  24. how many solutions are real?

    hi, I am stuck on this question. y=x^2+4x and y^2= 25x^2+20x+3 how many of the solutions are real? and how many of the real roots are positive and how many are negative? thank you for any suggestions I suggest you solve for the roots. y=x(x+4) At y=0, what

    asked by wi on May 21, 2007
  25. algebra

    solve by graphing 1.80+.2x=y 2.10+.15x=y solve by graphing 20+20x=y 200-25x=y

    asked by hernan on January 14, 2013
  26. Calculus

    Hello, I just wanted to verify if my work was good. Calculate the following integral by parts: ∫ upper limit is 1/5 and lower limit is 1/10. of 10sin^-1 (5x)dx so first I named the variables: u = 10 sin^-1 (5x) du = 50 / sqr(1-25x^2) dv = dx v = x so we

    asked by Robert on September 7, 2012
  27. Definite integral by parts (correction)

    Hello, I just wanted to verify if my work was good. Calculate the following integral by parts: ∫ upper limit is 1/5 and lower limit is 1/10. of 10sin^-1 (5x)dx so first I named the variables: u = 10 sin^-1 (5x) du = 50 / sqr(1-25x^2) dv = dx v = x so we

    asked by Robert on September 5, 2012
  28. Algebra story problem

    I need to turn this story into an algebra problem: Your cousin ears $25 per week babysitting and receives one $5 bonus. You earn $15 per week mowing lawns and $12 a week running errands. After working the same number of weeks, you have $11 more than your

    asked by Avalon on November 18, 2006
  29. math

    One canned juice drink is 25% orange juice another is 5% orange juice. How many liters of each should be mixed together in order to get 20L that is 24% orange juice? How many liters of the 25% orange juice should be in mixture? How many liters of the 5%

    asked by Anna on November 5, 2009
  30. math

    One canned juice drink is 25% orange juice another is 5% orange juice. How many liters of each should be mixed together in order to get 20L that is 24% orange juice? How many liters of the 25% orange juice should be in mixture? How many liters of the 5%

    asked by Anna on November 5, 2009
  31. algebra

    The problem is factoring completely 4xX^2-20x-24 4(X^2-5x-60 4(x-6)(x+1) 12x^2-75 3(X^2-25)=3(X-25)(x+3) Can someone check these problem for me please.

    asked by Betty C on June 1, 2010
  32. BobPursley..here it is:

    Problem 1: (x-2)/(3x+4) - 6x/(x+1) What I did: Common denominator is: (3x+4)(x+1) (x-2)(x+1)/(3x+4)(x+1) - 6x(3x+4)/(x+1)(3x+4) [(x-2)(x+1) - 6x(3x+4)] / (x+1)(3x+4) (x^2 - x - 2 - 18x^2 - 24x) / (x+1)(3x+4) x^2 - 18x^2 = -17x^2 -x - 24x = -25x (-17x^2 -

    asked by Margie on March 4, 2007
  33. Algebra 1

    Are these right? xy - 3x - 8y + 24 (3x-y)-(8y+24) 8y+24 4x^2 + 20x + 5y +xy 36x+(5y+x) 36x-5y I don't think so it's right.Your question xy-3x-8y+24 is itself the answer.It cannot be further calculated bcause it doesn't have the terms containing the same

    asked by mike on March 8, 2007
  34. Microbiology

    You need 3.5L of 50mM NaCl from your 20X stock. How would you accomplish this: 20X stock __________ml Pure Water ___________ml From whatever number I plugged in trying to solve it, I got: 175ml of 20X stock and 3,430ml of Pure Water. Have no idea if those

    asked by John on March 27, 2013
  35. Advanced Algebra

    25x^4-25x^2+6=0 solve type an exact answers using radical and rationalize all denominators

    asked by Avincent on March 18, 2008
  36. Math

    Find the inverse of the function. f(x) = -0.25x + 6 I am having trouble when there is a decimal to solve like -0.25x

    asked by Nathaly on October 12, 2018
  37. algebra1

    can you guys please graph the system of inequalities and clasify the solution of y¡Ü4x+4 y¡Ü-0.25x+4 y¡Ý4x-1 y¡Ý-0.25x-1

    asked by jenika on May 17, 2012
  38. Algebra 2

    Use Cramer's rule to find the number of items the company must sell each week to break even. y= 20x + 200 y= 25x D= |20 -1|. -20 - (-25) . |25 -1| D= 5 Dx= |200 -1|. -200 - 0 . |0 -1| Dx= -200 Dy= |20 200|. 0 - 5000 . |25 0 | Dy= -5000 x= Dx/D x= -200/5 x=

    asked by Jacqueline on October 29, 2014
  39. Math

    solve the equation 20x^3 +44x^2 -17x -5 given that -5/2 is a zero of f(x) 20x^3 +44x^2 -17x -5 I used synthetic division and got 20x^2-6x-2=0 took 2 and divided it out of that equation 2(x+5/2)=10x^2 -3x-1 then i factored it out the right side of the

    asked by sarah on March 2, 2009
  40. intermediate algebra

    use polynomial long division to divide 25x^3+40x^2+25x+10 by -5x^2-3x-2

    asked by ROCKY on August 2, 2011
  41. intermediate algebraDivide

    Using polynomial long division to divide. 25x^3+40x^2-25x+10 by -5x^2-3x-2

    asked by ROCKY on August 1, 2011
  42. Trig

    Find the derivative. {sqrt(x+8)}*(x^2+20x) (x+8)^1/2(2x+20) minus (1/2)(x+8)^-1/2(x^2+20x) I'm not feeling confident I am on the right track and I have a quiz tomorrow over this.

    asked by Please Help on May 17, 2017
  43. Algebra

    Can someone tell me if I am right? Factor by group 20x^2-12x=15x-9 20x^2+3x+9 (4x+3)(5x-3) answer

    asked by Tim on March 13, 2008
  44. math

    Find the product. (2x)(10x) A.20x B.12x C.20x^2 D.-5x Is the answer A?? Thanks

    asked by nelly on May 13, 2015
  45. algebra

    Find the product (2x)(10x) Answers: 20x 12x 20x^2 5x

    asked by Mia on June 6, 2014
  46. algebra

    Please correct,if necessary, and simplify using long division: (-72-4x^2+8x^3-36x) devided by (x-3). My solution: 8x^2+20x+24 ------------------- 8x^3-4x^2-36x-72 8x^3-24x^2 ------------------ 20x^2-36x-72 20x^2-60x ----------------------- 24x-72 24x-72

    asked by Anneliese on April 15, 2017
  47. algebra

    what is the system of equation of: 0.25x+0.15y=2.5 1.25x-1.25y=7.5

    asked by jhia on September 23, 2014
  48. Trig

    Find the derivative using the product rule. {sqrt(x+8)}*(x^2+20x) (x+8)^1/2(2x+20) minus (1/2)(x+8)^-1/2(x^2+20x) I'm not feeling confident I am on the right track and I have a quiz tomorrow over this.

    asked by Anonymous on May 17, 2017
  49. math

    Simplify the given equation. 17x - 6 + 3x - 5 = x + 11 + 4x A)20x - 11 = 5x + 11 B)20x + 1 = 5x + 11 C)9x = 16x

    asked by nicky on March 8, 2010
  50. Calclulus - L'Hopital's Rule

    Evaluate the limit as x -> Infinity [5x-sqrt(25x^2+4x)] Direct substitution yields the indeterminate form Infinity - Infinity. Apparently, according to text book, I have to change that mess into something I can use L'Hopital's Rule on. Except the only

    asked by Sean on March 16, 2008
  51. arithmetics

    I still don't understand how you got those answers?drbob how did you get 0.75 divided by 112.50? can someone else help me understand? #6 After an article is discounted at 25% it sells for $112.50. The original price of the article was? answer 150.00 #7 A

    asked by chrisssy on August 1, 2007
  52. Algebra

    Natalie has $50 to spend at the amusement park. If admission costs $24, she spends $12.50 on food, and each game is $1.25 per play, write an equation that represents her total spending, y, and x as the number of games played. Then find how many games she

    asked by Beep Beep Im a Sheep on June 4, 2019
  53. math

    WRITE A PROBLEM IN WHICH YOU WOULD USE THE FUNCTION RULE y=20X

    asked by Anonymous on September 13, 2010
  54. Math(Please Help)

    x-2 6x ____ - _____ 3x+4 x+1 *You are supposed to simplify the expresion.I really need help with this and some other problems.Please and Thank you.- Perhaps I could help but I can't make heads or tails of your posts. Try using parentheses (and / bar for

    asked by Margie on March 3, 2007
  55. Pre-Algebra

    How do you solve this Pre-Algebra problem: $1.25x + $2.25y = $916 x + y = 560

    asked by 8th Grade on February 1, 2014
  56. i dont know how to solve this

    A taxi charges $2.25 for a ride, plus $0.25 for every 1/4 mile. Which inequality represents how many miles, x, a person could travel with $8.00? A $2.25 + $0.25x ≥ $8.00 B $2.25 + $0.25x ≤ $8.00 C $2.25 + $1.00x ≥ $8.00 D $2.25 + $1.00x ≤ $8.00

    asked by matt on January 19, 2016
  57. Algebra II-please check

    Write the polynomial in simplest form with roots 4, 5i and -5i(multiply it out so no parentheses remain (x-4)(x+5i)(x-5i)(NOT SURE ABOUT THIS ONE) (x-4)(x^2-25i^22) (x-4)(x^2+25) x^3+25x-4x^2-100 x^3-4x^2+25x-100 Is this correct

    asked by Graham on January 16, 2012
  58. Math

    using echelon method 4x-2y=9 20x-10y=27 pls help with problem. Once I get 24x -2y 36 I'm confused after that.

    asked by Marie on February 27, 2010
  59. Algebra 2

    The function f(x) = -5x. The graph of g(x) is f(x) vertically compressed by a factor of 1/4 and reflected in the x axis. What is the function rule for g(x)? g(x) = -20x g(x) = -5/4x g(x) = 20x g(x) = 5/4x I think it's B, but I'm really not sure... please

    asked by Fading on October 3, 2016
  60. Math Algebra

    Resolve(17x²+14x + 9) – (-13x² +6x - 12) 30xsquared+20x+21 I'll try to be helpful and show the work. This is the method I learned last quarter. (17x"sq"+14x+9) + (13x"sq"+6x+12) = (30X"sq"+20x+21) I used the vertical method but the step are the same

    asked by Rosa on June 5, 2007
  61. algebra

    I was wondering if my answer is right. Let f (x)=(x+10)^2. Find x so that f(x)=72 (x+10)^2=72 x^2+20x+100=72 x^2+20x+28=0 x=(-20+-sqrt(400-112))/2 x=-10+6*sqrt(2)

    asked by dan on April 25, 2010
  62. College Algebra

    A manufacturer of radios estimates that his daily cost of producing x radios is given by the equation C=350+5x. The equation R=25x represents the revenue in dollars from selling x radios. *Profit function,P(x)=R(x)-C(x),P(x)=20x-350 *How many radios should

    asked by Ana on February 9, 2012
  63. Math

    If 5x +4y and 4x +3y =5 15x +12y =18 16x +12y = 20 31x/31= 38/31 x= 1 7/31 20x +16y =24 20x +15y = 5 31/y/31 = 29/31 y=29/31 x +y = 1 7/31 + 29/31 2 5/31

    asked by kareen on August 20, 2015
  64. Math- Need Help

    If 5x +4y and 4x +3y =5 15x +12y =18 16x +12y = 20 31x/31= 38/31 x= 1 7/31 20x +16y =24 20x +15y = 5 31/y/31 = 29/31 y=29/31 x +y = 1 7/31 + 29/31 2 5/31

    asked by kareen on August 21, 2015
  65. Algebra

    What is the side length of a square with an area of 25x^2 -30+9 ? I'm completely confused on this problem. I do not understand how to factor using the GCF.

    asked by Tristien on January 14, 2016
  66. math - factoring

    I'm having some trouble factoring a problem. It's 75x^2 - 27 I know I can first factor out a GCF of 3 which leaves me with 3(25x^2 - 9) This seems to me to be a differences of squares but I cannot figure out what to do next. Thank you.

    asked by Susan on December 14, 2017
  67. Algebra

    Can someone tell me if these problems have the right answers? I am tooooooo old to know this any more. I understand the first one, but 2&3 are vaguely familiar. 25x^2+25x+6=0 the answer is x=-1/2 +/- 1/10 #2 solve for V=1/3Bh for B answer is B=V/ 1/3h #3

    asked by Algebra Parent on March 21, 2008
  68. Algebra

    Simplify and write with positive exponet (4x^-1)^-1 Work: (1/4x)^-1 (1/(1/4x))(4x/4x)= 1 (X^3+3x^2+3x+1)^-2/3 Work 1/(X^3+3x^2+3x+1)^2/3 1/(X^2+52/25x^4/3+52/25x+1) I'm confused on whether these are right or not can someone check my work or explain to me

    asked by Yaga on August 16, 2016
  69. Math

    Prove 3(x+1)(x+7)-(2x+5)² is never positive So, 3(x+1)(x+7)-(2x+5)(2x+5) =3(x²+8x+7)-(4x²+20x+25) =3x²+24x+21-4x²-20x-25 =-x²+4x-4

    asked by Anonymous on February 12, 2017
  70. math

    determine wether the following lines are parallel, perpendicular or neither. y=20x+45 and y=-1/20x+81 they are perpendicular right?

    asked by rmz on February 22, 2010
  71. math,correction

    Solve for x. Problem #22 25x^2 = 13 My answer: x = + - radical (13)/(5) Problem #32 2 (x - 5 )^2 = 3 My answer: x = 5 +- radical (3)/(2) Problem #42 Solve for x x^2+4x+4=7 (hint factor the left-hand side) My answer: x = -2 +- radical (7)

    asked by jasmine20 on March 28, 2007
  72. math

    1. (2x)(10x) a. 20x b.12x c.20x^2 d.5x** 2. -3m(m+8) a. -3m^2+24 b. -3m^2-24m c. -24m^2** d. -4m+5 3. 4d(2d-9) a.8d-36d** b.-d c.-28d^2 d. 8d^2-36d 4. find the product 5b(6b-10) a. 11b-10 b. 5b^2+6b-10** c. -b-10 d. 30b^2-50b

    asked by please help on May 20, 2016
  73. Honors Algebra 2

    i have no clue how to solve this!! the problem is... 20x^3 - 125x = 0 (twenty x to the third power minus onehundredandtwentyfive x equals zero) it asks to find all the solutions for the equation. please help!!

    asked by Anonymous on September 12, 2010
  74. algebra

    I need someone to check my work not sure if I'm doing this right. The design of a digital box camera maximizes the volume while keeping the sum of the dimensions at 6 inches. If the length must be 1.5 times the height, what should each dimension be? HINT:

    asked by kevin on November 26, 2012
  75. Math - PreCalc (12th Grade)

    Which rectangular equation corresponds to these parametric equations? x = 0.2sec t and y = -0.25tan t A) 25x^2 − 16y^2 = 1 B) 25x^2 + 16y^2 = 1 C) x^2 − 16y^2 = 25 D) 25y^2 − 16x^2 = 1 E) 4x^2 − 16x^2 = 1

    asked by Anonymous on March 24, 2014
  76. Math

    An n-sided polygon has interior angles of which 4 of them are of sizes 125,220,40 and 295 degrees . The remaining interior angles are of sizes 20 degrees each. Find the value of n, My working: let the number of sides for the polygon be n and the remaining

    asked by Nurul on December 5, 2014
  77. algebra

    Having problems with the FOIL for the problem below (5x^8-5)(x^9-4). My answer is 5x^17-20x-5^9-20. please let me know if this is correct. if not correct can you show me what i need to do?

    asked by Donni on November 30, 2010
  78. college algebra

    10x+10y+20=1850 20x+20y+10z=2200 20x+10y+10z=1500

    asked by Anonymous on November 28, 2017
  79. Math Help!

    1. Find the product. (2x)(10x) 20x 12x 20x^2 5x 2. -3m(m + 8) -3m^2 + 24 -3m^2 + 24m -24m^2 -4m + 5 3. 4d(2d - 9) 8d - 36d -d -28d^2 8d^2 - 36d

    asked by Allison on May 21, 2014
  80. 12th math

    A biologist determines that the path of a bee from its hive to its foraging site can be described by the parametric equations x= 4t-1 and y=2t^2+3t-4. Which of the following equations is the curve described by these parametric equations? y=20x-9 y=20x+16

    asked by line on May 18, 2018
  81. Pre-Calculus Help?

    A biologist determines that the path of a bee from its hive to its foraging site can be described by the parametric equations x- 4t-1 and y-22+3t-4. Which of the following equations is the curve described by these parametric equations? y=20x-9 y=20x+16

    asked by ADOG on May 18, 2018
  82. Math

    1)The break-even point is the ticket price for which the event's income will equal expenses. Another way to think of the break even point is the ticket price when profit is $0. The equations given in an earlier problem were: P=((4000-25X)x)-7500

    asked by Savannah on September 5, 2012
  83. Math Help me.

    Reduce the rational expression to lowest terms. If it is already in lowest terms, enter the expression in the answer box. Also, specify any restrictions on the variable. 25x^2−30x+8/25x^2−16

    asked by Keonn'a on November 4, 2018
  84. Math check

    1.(2x)(10x) A)20x* B)12x C)20x^2 D)5x 2.-3m(m + 8) A)-3m^2 + 24 B)-3m^2 - 24m C)-24m D)-4m + 5* 3. 4d(2d-9) A)8d - 36d* B)-d C)-28d^2 D)8d^2 - 36d 4. (3x + 4)(x-2) A)3x^2 - 2x - 8 B)x - 8 C)3x - 2x - 8* D)3x^2 + 2x + 8 5. (2y - 1)(4y - 3) A)-2y + 3* B)8y^2

    asked by Oscar on March 21, 2015
  85. math

    suppose that the gas tank of a car holds 12 gallons and that the car uses 1/ 20 of a gallon per mile .let x be the nuber of miles the car has gone since the tank was filled? (1/20x)= 12 so now get x by itslef! (1/20x)/ (1/20)= 12/(1/20) x= 240! yeah I am

    asked by jess on October 30, 2006
  86. Algebra

    Jackson sells two types of toolboxes. He plans on selling them during a farming fair this weekend. He estimates he will sell 20 of the smaller boxes and 12 of the larger boxes. If he'd like the profit to be $1300, which of the following best displays the

    asked by Ace on November 15, 2019
  87. math,algebra II

    I need someone to explain to me step by step the process of this problem its in my book as an example but i am not understanding it. Ive researched the explanation of the ECHELON METHOD...BUt i am not seeingit...this is the problem that they have: Use the

    asked by alma20 on June 1, 2007
  88. Algebra

    Can someone help me with this please. Andrew factored the expression 20x^3-12x^2+8x as 4x(5x^2-12x^2+8x) but when melissa applied the distributive law and multiplied out 4x(5x^2-12x^2+8x)she got 20x^3-48x^3+32x thus Andrews solution does not appear to

    asked by Anonymous* on August 2, 2012
  89. Math

    A bike rental charges a $4.00 rental fee plus $2.25per hour. Selena paid $12.00 to rent a bike. How many hours did Selena rent the bike for? I can't figure out how to round the answer 4+2.25x=12 -4 -4 2.25x= 8 2.25 2.25 X= 3.555555555555555

    asked by Andrew washington on September 17, 2014
  90. 7th Grade Math ~Multiplying Polynomials

    1. (2x)(10x) (1point) 20x 12x 20x^2** 5x 2. -3m(m+8) (1point) -3m^2+24 -3m^2-24m** -24m^2 -4m+5 3. 4d(2d-9) (1point) 8d-36d -d -28d^2** 8d^2-36d 4. 5b(6b-10) 11b-10 5b^2+6b-10 -b-10 30b^2-50b** Are these right

    asked by Gabby on May 14, 2013
  91. Algebra

    Andrew factored the expression 20x^3-12x^2+8x as 4x (5x^2-12x^2+8x). But when Melissa applied the distributive law and multiplied out 4x (5x^2-12x^2+8x), she got 20x^3-48x^3+32x^2; thus, Andrew’s solution does not appear to check. Why is that? Please

    asked by traci on June 29, 2011
  92. algebra

    Andrew factored the expression 20x^3-12x^2+8x as 4x(5x^2-12x^2+8x). But when Melissa applied the distributive law and multiplied out 4x(5x^2-12x^2+8x),she got 20x^3-48x^3+32x^2; thus, Andrew's solution does not appear to check. Why is that? Please help

    asked by ROCKY on July 24, 2011
  93. Pre-Calculus

    Rewrite each quadratic equation in the form ax^2+bx+c=0. Then,use technology to solve each by graphing. ROund you answers to the nearest hundredth, where necessary. a) 3x^2+30 = -19x Answer: 3x^2+19x+30 Roots: x = -3 b) 6x^2= 25x-24 Answer: -6x^2+25x-24=0

    asked by Lucina on March 21, 2015
  94. math

    You run a small furniture business. You sign a deal with a customer to deliver up to 700 chairs, the exact number to be determined by the customer later. The price will be $150 per chair up to 600 chairs, and above 600 the price will be reduced by $0.25

    asked by Leila on October 29, 2015
  95. Math

    An auditorium has 1600 seats. At a ticket price of $6, the owners can sell 1200 tickets. For each 25 cent increase in price the tickets sold reduces by 25. What price should the owners set to maximize the income? Income=(6+.25x)(1200-25x) Generalize and

    asked by Elisabeth on December 4, 2011
  96. 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

    asked by please check my work on December 1, 2016
  97. Hyperbola's vertics? and parabola's orientation

    y^2= 9(x^2)+20x+3 how to identify its orientation and the locaation of its vertices? sqrt(x^4+8x^3)=sqrt(9x^2+20x+3) How to identify the parabola's orientation? up or down? thank you

    asked by jay on May 21, 2007
  98. Algebra

    I need help learning to solve substitution. I have a problem that says solve the system by substitution -4.5x-2y=-12.5 3.25x-y=-0.75

    asked by Samantha on October 8, 2017
  99. Math ASAP please

    1. Write a function rule for finding the amount of daily pay, p, in the following situation: A bus driver gets paid $100 each day plus $0.20 per kilometer, k. (1 point) 100 = 0.20 × k p = 0.20 × 100 × k p = 0.20k + 100 0.20k = 100 + p 4. Write a

    asked by Delilah on April 19, 2013
  100. Algebra

    20x^2-12x+15x-9 20x^2-12x+15x-9 = 20x^2+3x-9 = (4x+3)(5x-3)

    asked by Tim on March 13, 2008