Kurlyash
22.12.2019 •
Mathematics
When the length of a rectangle with a width of 1/6ft was increased by 2/3ft, the area of the rectangle became 11/72 sq ft. what was the original length
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Ответ:
1/4 ft
Step-by-step explanation:
The area is given by the product of length and width. Since the width of the rectangle was not changed, the new length L satisfies the equation ...
(1/6 ft)·L = 11/72 ft²
Multiplying by 6/ft tells us the new length:
L = (6/ft)·11/72 ft² = 11/12 ft
The original length is 2/3 ft shorter so is ...
L -2/3 ft = 11/12 ft -8/12 ft = 3/12 ft
L = 1/4 ft
Ответ:
6
Step-by-step explanation:
replace x with 6 in the ecuation.
4(6)=24 - 8 =16