SOLUTION: A circle has an area of A cm^2. Its area is increased by 130% and,70% of its new area is then covered. What fraction of the original area is not covered?

Question 1035477: A circle has an area of A cm^2. Its area is increased by 130% and,70% of its new area is then covered.
What fraction of the original area is not covered?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A circle has an area of A cm^2. Its area is increased by 130% and,70% of its new area is then covered.
What fraction of the original area is not covered?
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After the increase it's A + 1.3A = 2.3A cm^2
30% is not covered.
0.3*2.3A = 0.69A

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