document.write( "Question 1172173: I am trying to answer this question from openupresources.org.\r
\n" ); document.write( "\n" ); document.write( "A restaurant offers delivery for their pizzas. The total cost is a delivery fee added to the price of the pizzas. One customer pays $25 to have 2 pizzas delivered. Another customer pays $58 for 5 pizzas. How many pizzas are delivered to a customer who pays $80?\r
\n" ); document.write( "\n" ); document.write( "What are the steps to answering this type of question?\r
\n" ); document.write( "\n" ); document.write( "docmaine@yahoo.com
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Algebra.Com's Answer #797093 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
A restaurant offers delivery for their pizzas. The total cost is a delivery fee added to the price of the pizzas. One customer pays $25 to have 2 pizzas delivered. Another customer pays $58 for 5 pizzas. How many pizzas are delivered to a customer who pays $80?\r
\n" ); document.write( "\n" ); document.write( "What are the steps to answering this type of question?
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\n" ); document.write( "It's not stated but implied that all pizzas cost the same. Assuming that's true:
\n" ); document.write( "----
\n" ); document.write( "d = delivery fee
\n" ); document.write( "p = pizza cost
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\n" ); document.write( "2p + d = 25
\n" ); document.write( "5p + d = 58
\n" ); document.write( "------------------------ Subtract
\n" ); document.write( "-3p = -33
\n" ); document.write( "p = $11
\n" ); document.write( "2*11 + d = 25
\n" ); document.write( "d = $3
\n" ); document.write( "=================
\n" ); document.write( "How many pizzas are delivered to a customer who pays $80?
\n" ); document.write( "11p + 3 = 80
\n" ); document.write( "11p = 77
\n" ); document.write( "p = 7 pizzas
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