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If the perimeter of a rectangle is 150 inches and the length is 3 inches longer than five times the width what is the length?
Wiki User
∙ 14y ago
Given: P = 150 and L = (5W + 3) Solve the 'L' equation for 'W': (L-3) = 5W ===> W = (L-3)/5 Perimeter = 2L + 2W = 2L + 2[ (L-3)/5 ] = 2L + (2L-6)/5 5 x perimeter = 10L + (2L-6) = 12L - 6 Perimeter = 150 = (12L-6)/5 ===> 750 = (12L - 6) ===> 756 = 12L ===> L = 756/12 = 63=============================== Check: L = 63, W = 12, Perimeter = 2(L+W) = 2(63+12) = 2(75) = 150. Yay !
Wiki User
∙ 14y ago
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A rectangle has a perimeter of 72m If the length is 20 m longer than the width find its dimensions?
a rectangle has a perimeter of 72m. If the length is 20 m longer than the width find its dimensions?
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i don't know what length of rectangle is 7 cm longer than the width the perimeter of the rectangle is 46 cm .what is the length of the of the rectangle ?
The perimeter of a rectangle is 30 inches what is the length of the rectangle?
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