SOLUTION: 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
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Question 188350This question is from textbook
: 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? This question is from textbook
You can put this solution on YOUR website! 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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Equation:
3p + 3s = 2334 cents
4p + 6s = 3270 cents
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Multiply thru the 1st equation by 2 to set up for elimination:
6p + 6s = 4668
4p + 6s = 3270
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Subtract the 2nd from the 1st to solve for "p":
2p = 1398
p = 699 cents or $6.99 (price of a pizza)
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Substitute to solve for "s":
3*699 + 3s = 2334
p = 79 cents (price of a soda)
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Cheers,
Stan H.
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