Maths

posted by Anonymous

a mother is three times as old as her daughter five years later the mother will be two and a half times as old as her daughter and find their present ages

  1. PsyDAG

    M = 3D

    M+5 = 2.5(D+5)

    Substitute 3D for M in the second equation and solve for D. Insert that value into the first equation to solve for M. Check by putting both values into the second equation.

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