The cost of a pizza varies directly as the square of its radius. If a pizza with a 6-inch radius costs $8.00, how
much should a pizza with a 9-inch radius cost?
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Answer:
$18
Step-by-step explanation:
cost varisus with radius^2
Cost for radius 6 inch means 36 inch^2 area pizza = $8.0
Cost for radius 9 inch means 81 inch^2 area pizza = $ (8/36) * 81
= $ 18
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