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A rectangular field has a perimeter of 194 feet. The length is 7 feet more than four times the width.
What is the length and what is the width?
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W = width
L = 4W + 7 (the length)
Equation
W + (4W + 7) = 194/2
5W + 7 = 97
5W = 97 - 7
5W = 90
W = 90/5 = 18.
ANSWER. The width is 18 feet; the length is 4*18 + 7 = 79 feet.
CHECK. 18 + 79 + 18 + 79 = 194 feet, the perimeter. ! Correct !
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