A 6-inch-by-10-inch rectangle is cut down to a 5-inch-by-9-inch rectangle. What is the percent of decrease in the area? Express your answer as a mixed number percent.
Old area - New Area
_________________ x 100% =
Old Area
(6 * 10) - (5 * 9)
______________ x 100% =
6 * 10
60 - 45
________ x 100% =
60
15
_____ x 100% =
1
___ x 100% = 25% decrease
4
