SOLUTION: the lenght of a rectangle is 6cm longer than the width.If the lenght of a rectangle is 6cm longer than the width.if the lenght is increased by 9cm and the width by 5 cm,the perimet
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Question 364295: the lenght of a rectangle is 6cm longer than the width.If the lenght of a rectangle is 6cm longer than the width.if the lenght is increased by 9cm and the width by 5 cm,the perimeter will be 160cm
.find the dimensions of the original retangle
Answer by amoresroy(361) (Show Source): You can put this solution on YOUR website!
Let L = length
W = width
Perimeter of a rectangle = 2L + 2W
-----------------------------------
L = w + 6
L + 9
W + 5
--------------------------
2L + 2W = 160
2(w + 6 + 9) + 2(w + 5) = 160
2w + 30 +2w +10 = 160
4w = 120
w = 30
--------------------------
L = w + 6
L = 30 + 6
L = 36
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