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OpenStudy (anonymous):
A bakery charges $0.20 for a cookie that is 2 inches in diameter. If the price is proportional to the area, how much do they charge for an extra large cookie that is 6 inches in diameter? Assume that each cookie is shaped of a circle
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OpenStudy (anonymous):
1.80
OpenStudy (anonymous):
Gracias
OpenStudy (anonymous):
price=k*pi*r^2 from the first condition we find wat k is... then substitue the value for r=3 inches...and find the new price :)
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