Asked by Daniel
Daniel is now six times as old as Mabel in twelve years time Daniel will be two times as old as Mabel .how old are they
Answers
Answered by
PsyDAG
D = 6M
(D + 12) = 2(M + 12)
Substitute 6M for D 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.
(D + 12) = 2(M + 12)
Substitute 6M for D 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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