Mathematics

Question

Liner systems of equations
Liner systems of equations

1 Answer

  • Answer:

    8 years

    Step-by-step explanation:

    x years later type A and type B will have the same height

    Type A = Type B: 10  + (8/12)*X  = 6 + (14/12)*X

    multiply 12 each side

    120 + 8x = 72 + 14x

    14x - 8x = 120 - 72

    6x = 48

    x = 8

    check: A: 10 x 12 + 8 x 8 = 184

                B: 6 x 12 + 14 x 8 = 184

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