SOLUTION: a rectangular garden has a with 5 ft and a length of 10 feet if an equal amount is added to both the width and the length the area is increased to 126 ft.² what is this amount
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Question 1059791: a rectangular garden has a with 5 ft and a length of 10 feet if an equal amount is added to both the width and the length the area is increased to 126 ft.² what is this amount Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! the amount added is x
(5+x)(10+x)=126
50+15x+x^2=126
x^2+15x-76=0
(x-4)(x+19)=0
x=4, -19
use only the positive root.
x=4 feet ANSWER
dimensions become 9*14=126 sq ft.
