Asked by Seymour

rectangular room is
3
3
times as long as it is wide, and its perimeter is
40
40
meters. Find the dimension of the room.

The length is : meters and the width is

Answers

Answered by PsyDAG
L = 3W

2L + 2W = 40

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

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