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A rectangle is 3 times as long as it is wide. The perimeter is 60cm. Find the dimensions of the rectangle.
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Jan 11, 2018
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A rectangle is 3 times as long as it is wide. The perimeter is 60cm. Find the dimensions of the rectangle.
Mathematics
high-school
Ben Elgar
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Ben Elgar
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7.5cm x 22.5cm is the answer.
Uzay
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Jan 12, 2018
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Uzay
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width = x
length = 3x
2(x + 3x) = 60
4x = 60/2
4x = 30
x = 30/4
x = 7.5 cm ← width
length = 3x = 3 * 7.5 = 22.5 cm
Robin Westerlundh
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Jan 17, 2018
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Robin Westerlundh
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