document.write( "Question 188350This question is from textbook
\n" ); document.write( ": Mrs. Jones is celebrating Gauss's birthday by having a pizza party for her two algebra classes. She orders 3 pizzas and 3 bottles of soda for $23.34 for her second period class and 4 pizzas and 6 bottles of soda for $32.70 for her 7th period class. How much does each pizza and each bottle of soda cost? \n" ); document.write( "
Algebra.Com's Answer #141210 by stanbon(75887)\"\" \"About 
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She orders 3 pizzas and 3 bottles of soda for $23.34 for her second period class and 4 pizzas and 6 bottles of soda for $32.70 for her 7th period class. How much does each pizza and each bottle of soda cost?
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\n" ); document.write( "Equation:
\n" ); document.write( "3p + 3s = 2334 cents
\n" ); document.write( "4p + 6s = 3270 cents
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\n" ); document.write( "Multiply thru the 1st equation by 2 to set up for elimination:
\n" ); document.write( "6p + 6s = 4668
\n" ); document.write( "4p + 6s = 3270
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\n" ); document.write( "Subtract the 2nd from the 1st to solve for \"p\":
\n" ); document.write( "2p = 1398
\n" ); document.write( "p = 699 cents or $6.99 (price of a pizza)
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\n" ); document.write( "Substitute to solve for \"s\":
\n" ); document.write( "3*699 + 3s = 2334
\n" ); document.write( "p = 79 cents (price of a soda)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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