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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.

 Apr 2, 2021
 #1
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Old area  - New Area

_________________   x       100%    =

         Old Area

 

(6 * 10)  -  (5 * 9)

______________   x        100%        =

         6 * 10

 

 

60   -   45

________       x         100%   =

      60

 

     15

 _____       x            100%    =

    60

 

     1

   ___        x         100%   =         25%  decrease

     4

 

 

cool cool cool

 Apr 2, 2021

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