Question

A rectangle is 3times as long as it is wide the perimeter is 60cm. Find the dimensions of the rectangle round to nearest tenth if necessary answers are 7.5cm.by22.5cm., 7.5cm.by52.5cm., 20cm.by60cm., 15cm.by22.5cm thanks
Ms. Sue
P = 2L + 2W

60 = 2(3W) + 2W

60 = 6W + 2W

60 = 8W

7.5 = W

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