SOLUTION: For a holiday party, Marcus is making a 5 layer torte, which consists of 5 9-inch diameter cale layers with a cream topping on each layer. He knows that one recipe of cream will c

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Question 230796: For a holiday party, Marcus is making a 5 layer torte, which consists of 5 9-inch diameter cale layers with a cream topping on each layer. He knows that one recipe of cream will cover 60 square inches of cake. How many batches of the topping must he make to complete his torte? (Use Pi = 3.14 as an approximate value)
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
A=pir^2
A=3.14*4.5^2
A=63.59 sq in each
63.59*5=317.93/60=5.3
so he needs 6 batches