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QIf a pizza with a diameter of 12 inches costs $10.99 , based on area, how much should a 15 inch pizza cost

If a pizza with a diameter of 12 inches costs $10.99 , based on area, how much should a 15 inch pizza cost?

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#1corlinaAnswered at 2013-01-11 07:25:55
A = pi * r^2

A = 3.14 * 6^2
A = 113.04 sq. inches

A = 3.14 * 7.5^2
A = 176.625 sq. in.


113.04/10.99 = 176.25/x
1941.109 = 113.04x
17.17 = x
#2ferozAnswered at 2013-01-23 03:07:30
Еhe ratio of areas of similar figures is equal to the ratio of the squares of linear dimensions

x=10.99(15/12)^2
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If a pizza with a diameter of 12 inches costs $10.99 , based on area, how much should a 15 inch pizza cost

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