SOLUTION: The radius of a large pizza is 1 in. less that twice the radius of a small pizza. The difference between the areas of the two pizzas is 33pi in^2. Find the radius of the large pizz

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Question 585363: The radius of a large pizza is 1 in. less that twice the radius of a small pizza. The difference between the areas of the two pizzas is 33pi in^2. Find the radius of the large pizza.
Answer by Alan3354(69443) About Me  (Show Source):
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The radius of a large pizza is 1 in. less that twice the radius of a small pizza. The difference between the areas of the two pizzas is 33pi in^2. Find the radius of the large pizza.
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Area+=+pi%2Ar%5E2
pi%2Ar%5E2+-+pi%2A%28r-1%29%5E2+=+33%2Api
r%5E2+-+%28r-1%29%5E2+=+33
Solve for r
r%5E2+-+%28r%5E2+-+2r+%2B+1%29+=+33
2r - 1 = 33
2r = 34
r = 17