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laiz [17]
3 years ago
8

At a pizzeria, a medium pizza which has diameter of 12 inches sells for $6.00 and a large pizza which has a diameter of 16 inche

s sells for $10.00. Which pizza is the better deal because it costs less per square inch?
Mathematics
1 answer:
Sidana [21]3 years ago
5 0
We are comparing areas, so square of the linear dimension
Relative cost per unit area
12^2/6=24
16^2/10=256/10=25.6
Since 24<25.6, the 12" pizza is a better deal.

Note: we could compare exact area by calculating A=pi (d^2)/4, but since it is a relative comparison, the result will be the same, albeit more work.
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