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larisa [96]
3 years ago
10

f a rectangle has a perimeter of 70, a length of x and a width of x - 9, find the value of the length of the rectangle.

Mathematics
1 answer:
trasher [3.6K]3 years ago
3 0

( x + (x  -  9))  \times 2 = 70 \\( 2x - 9) \times2= 70 \\ 4x - 18 = 70 \\ 4x = 70 + 18 = 88
x =  \frac{88}{4}  = 22
the length is 22


and the width is
22-9=17





good luck
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