A rectangular garden has a width of 5 feet 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 square feet. What is this amount?
1 answer:
Add 10+5, since the added amount is equal to both numbers are equal: 15
Divide 126/15: 8.4
5*8.4+10*8.4 = 126
Answer is 8.4
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