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math

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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

  • math -

    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.

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