SOLUTION: By decreasing the length of the side by one unit, the area of a square decreased from 100 square meters to 81 square meters. Find the percent decrease in area.

Algebra ->  Rectangles -> SOLUTION: By decreasing the length of the side by one unit, the area of a square decreased from 100 square meters to 81 square meters. Find the percent decrease in area.      Log On


   

Question 568504: By decreasing the length of the side by one unit, the area of a square decreased from 100 square meters to 81 square meters. Find the percent decrease in area.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
(100-81)/(100) = 19/100 = 0.19

So the percent decrease is 19%
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