SOLUTION: Johnny can't decide which size pizza to order. The 10inch cheese and sausage pizza is $4.99, while the 12 inch deluxe is $5.99. If he gets the 10-inch pizza, the total price will b

Algebra ->  Algebra  -> Volume -> SOLUTION: Johnny can't decide which size pizza to order. The 10inch cheese and sausage pizza is $4.99, while the 12 inch deluxe is $5.99. If he gets the 10-inch pizza, the total price will b      Log On

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Question 203578: Johnny can't decide which size pizza to order. The 10inch cheese and sausage pizza is $4.99, while the 12 inch deluxe is $5.99. If he gets the 10-inch pizza, the total price will be divided among 3 people. If he chooses the 12-inch pizza, then the total price will be divided among 4 people.
Which is the better buy?
12 inch pizza
How much will each person pay? (use 3.14)
$1.50 each
Answer by scott8148(5880) About Me  (Show Source):
You can put this solution on YOUR website!
since the amount of pizza (area) is proportional to the SQUARE of the diameter
___ the 12" pizza is 1.44 times (144/100) as large as the 10" pizza

since the price is about 1.2 times (5.99/4.99) as much, the larger pizza is a better buy
___ and it costs less per person -- $1.50 vs $1.67

MORE pizza ... LESS cost ... WHAT A DEAL!!!