The length of a rectangle is three more than twice its width. The perimeter is 36 inches. Find the length and width.
w = 5, l = 13
w = 8, l = 10
w = 6, l = 12
w = 7, l = 11
@iGreen
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OpenStudy (shinalcantara):
the perimeter of a rectangle is
P = 2L + 2W
since the length is 3 more than twice the width you'll have:
L = 2W + 3
figure it out
OpenStudy (shinalcantara):
you're given with the perimeter of 36 inches
OpenStudy (igreen):
Which option has the length as 3 more than twice its width"?
OpenStudy (igreen):
All of them have a Perimeter of 36 I think.
OpenStudy (igreen):
The answer is obviously A..
Width = 5
Length = 13
Length = Width * 2 + 3
13 = 5 * 2 + 3
13 = 10 + 3
13 = 13
And:
P = 2(5) + 2(13)
P = 10 + 26
P = 36
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