math

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
-15r + 12s = 24
30r – 24s = 48

  1. 👍 0
  2. 👎 0
  3. 👁 201
  1. did you notice the slope of the first line is 15/12 or 5/4
    the slope of the second is 30/24 = 5/4
    So the two lines are parallel.
    Notice by multiplying the first by -2 we would get
    30r - 24s = -48
    since the constants are different, we have 2 different parallel line, which cannot intersect
    So no solution.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. math elimination method

    elimination method really confuses me. solve by elimination method 5r -3s = 17 3r + 5s =17 A. solution is ______ (ordered pair, integer or fraction) B. Infinitely many C. No Solution

    asked by Lorri on July 9, 2010
  2. Math 116 algebra please check

    Solve by elimination method 2x + 3y =1 4x + 6y =2 What is the solution of the system N there is no solution

    asked by jay jay on July 16, 2008
  3. Intermediate Algebra

    Solve using the elimination method.Show work.If system has no solution state this or infinite solution 8x+10y=-34 16x-5y=-43

    asked by sherry on March 27, 2012
  4. algebra

    Solve using the elimination method. Show your work. If the system has not solution or an infinite number of solutions, state this. -2x-8y=-42 -4x+6y=-18

    asked by Ann on July 3, 2012
  5. Algebra....HELP!!

    Solve the elimination method 7a + 6b = 3 -7a +b = 25 The solution of the system is?

    asked by Theresa on September 7, 2012
  1. Math

    Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 8x + 11y = -50 -32x – 44y = -200

    asked by Donnice on August 10, 2011
  2. Linear Equations

    Solve using the elimination method. If the system has no solution or an infinite number of solutions, state this. 10x - y = 12.5 3x + y = 7

    asked by Wayne on May 24, 2011
  3. Math

    Use elimination to solve each system of equations. x+y-2z=10 8x-9y-z=5 3x+4y+2z=-10 I need to figure out what x,y, and z each equal. I must use the elimination method.

    asked by Karli on January 11, 2010
  4. Algebra

    7x + 5 = y 3.5x + 20 = y Solve the system of equations. What method did you use to solve the system and why? Show your work. Can someone please explain to me the process of solving the system? That would be nice. Thanks! (=

    asked by Scarlet on May 17, 2016
  5. Substitution Method in Algebra!HELP PLZ!

    Use the Substitution method to solve the system of equations. 3x + y = 5 4x - 7y = -10 multiply first equation by 4 multiply second equation by 3 thus both equations have same x or y value in this case it is the x value. 12x + 4y

    asked by Matthew on November 5, 2006

You can view more similar questions or ask a new question.