How do you solve #18?

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asked Jan 4, 2019 197k views

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How do you solve #18?

Mathematics
high-school

Tamas Molnar asked

by Tamas Molnar

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the formula for area is A = pi × radius^2. In this case, you are given diameter. Cut the diameter in half yo find the radius and plug the radius into the equation (Ex: for the first pizza the setup would be A = pi × 4^2.)

Ryan Pergent answered Jan 6, 2019

by Ryan Pergent

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Pizzas are circles. Area of circles is (pi)r^2.

Then find the cost per in.^2

Smallest cost per in.^2 is better buy.

JJJollyjim answered Jan 9, 2019

by JJJollyjim

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