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Gabby1128
13.09.2019 •
Mathematics
The width of a rectangle is 12 inches more than the length. the perimeter is 76 inches. find the width and the length.
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Ответ:
The length of the rectangle is 13 inches and its width (13 + 12) is 25 inches.
Step-by-step explanation:
You have to consider the formula of the perimeter = 2·length + 2·width.
If we call "x" to the length ⇒ width = x + 12 .
Perimeter = 2x + 2·(x + 12) ⇒ Perimeter = 2x + 2x + 24
⇒Perimeter = 4x + 24. ⇒ 76 = 4x + 24 ⇒ 76 - 24 = 4x ⇒52 = 4x
⇒ 52/4 = x ⇒ x = 13.
So, the length of the rectangle is 13 inches and its width (13 + 12) is 25 inches.
Ответ:
3.149 Rounded to the Nearest hundred is 3.15 because the the 9 is the big number and it would make it 3.15