DogpTaynesl DogpTaynesl

23-11-2016
Mathematics

contestada

A rectangle is twice as long as it is wide. If its area is 50 sq. yd., find the length.

10 yd.
25 yd.
33 1/3 yd.

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Greenleafable Greenleafable

30-11-2016

If one side is twice as long then that means that b = 2a, so the area formula is
a x 2a = 50
2a^2 = 50
a^2 = 50/2
a^2 = 25
a = 5
b = 2a
b = 10.

The correct answer is 10yd

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