28. The rectangular deck on Sachi’s house has a width of 4 yards and a length of 6 yards. Sachi remodels the deck by increasing both the length and width by the same amount. The area of her new deck is twice the area of her original deck. What is the length, in yards, of Sachi’s new deck?

Answer and Explanation

Your Answer is

Correct Answer is H

Explanation

First, let the length and width increase by x yards respectively, so since the area of ​​the new deck is twice the original area, the formula ( 4+x ) ( 6+x )=2×4×6 can be calculated You can find the length of the new deck by outputting x