Question

By decreasing each dimension by 3 units, the area of a rectangle decreased from 50 square feet (on the left)

to 14 square feet (on the right). Find the percent decrease in area.

Answer 1

Percent decrease in area is 72%

Explanation:

Percentage decrease is

100% - 14/50 * 100%

100% - 28% = 72%

Therefore, percentage decrease is 72%