SOLUTION: A rectangle is 5 cm. longer than it is wide. If its length and width both increased by 3 cm. , its area is increased by 60 cm (squared). Find the dimensions of the original rectang
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Question 166767: A rectangle is 5 cm. longer than it is wide. If its length and width both increased by 3 cm. , its area is increased by 60 cm (squared). Find the dimensions of the original rectangle.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = length in cm
Let = width in cm
Let = area
It is given that
(1)
Also given is
And, since
(2)
Since (1) and (2) are both equations
for , make them equal to eachother
The dimensions of the original rectangle are 11 x 6 cm
check:
cm2
cm2
OK
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