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emmainna [20.7K]
4 years ago
11

A rectangle has a perimeter of 68 inches. If the width of the rectangle is 10 inches, what is the length of the rectangle. Pleas

e explain
Mathematics
2 answers:
Ipatiy [6.2K]4 years ago
6 0
Perimeter is the sum of all the 4 sides:
Perimeter = L + L + W + W

Given Width = 10 and Perimeter = 68
L + L + 10 + 10 = 68
2L + 20 = 68
2L = 68 - 20
2L = 48
L = 48 ÷ 2 = 24

Length = 24 inches
Zigmanuir [339]4 years ago
5 0
The perimeter of a rectangle is given by:
P_r = 2(l+w)

We need to solve for length (l):
P_r = 2l+ 2w
l = \frac{P_r - 2w}{2}

Plug in given information:
l =  \frac{68-2(10)}{2}
l = 24

So, the length of the rectangle is 24 inches.
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