The length of a rectangle is 5 cm longer than twice the length of the with. Is the perimeter of the rectangle is 88 cm what is t
he width?
2 answers:
The width is 13 cm.
l=2w+5
88=2l+2w
From there it’s just solving for w.
One way to do that is by using the first equation to put the second equation in terms of only w.
Length (L) = 2w + 5
width (w) = w
Perimeter (P) = 2L + 2w
88 = 2(2w + 5) + 2(w)
88 = 4w + 10 + 2w
88 = 6w + 10
78 = 6w
13 = w
Answer: 13 cm
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