SOLUTION: a local park is 30 meters long by 20 meters wide .plans are being made to double the area by adding a strip at one end and another of the same width on one side. find the width of

Question 36855: a local park is 30 meters long by 20 meters wide .plans are being made to double the area by adding a strip at one end and another of the same width on one side. find the width of the strips.
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
20*30=600 OR DOUBLE THIS AREA=1200 THUS (20+X)*(30+X)=1200 OR
600+50X+X~2=1200 OR X~2+50X-600=0 OR (X+60)(X-10)=0 X=-60 OR X=10
THUS (20+10)*(30+10)=1200 OR 30*40=1200 OR 1200=1200
WIDTH OF THE STRIP IS 10 METERS
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