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Mr. McBride ordered 6 cheese pizzas and 7 pepperoni pizzas and paid $153.50 for his son's birthday party. He realized he was going to run out of pizza and made a second order. This time, he ordered 2 cheese and 2 pepperoni pizzas and paid $47.00. What is the cost of one pepperoni pizza?

 Mar 28, 2020
 #1
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Let c be the number of cheese pizzas and p be the number of pepperoni pizzas.

 

By systems of equations, we have:

 

6c+7p=153.50

 

2c+2p=47.00

 

...........................................

 

c+p=23.50,   6c+6p=141.00

 

Thus, the cost of one pepperoni pizza is $12.50.

 Mar 28, 2020

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