SOLUTION: At the movies concession stand, the cost for one popcorn and one drink id $5.75. The cost for 3 popcorns and 2 drinks is 14.75. what is the cost for popcorn?
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Question 352112: At the movies concession stand, the cost for one popcorn and one drink id $5.75. The cost for 3 popcorns and 2 drinks is 14.75. what is the cost for popcorn? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! At the movies concession stand, the cost for one popcorn and one drink id $5.75. The cost for 3 popcorns and 2 drinks is 14.75. what is the cost for popcorn?
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Equations:
p + d = 575 cents
3p+2d = 1475 cents
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Multiply thru the 1st eq. by 2 to get:
2p + 2d = 2*575
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Subtract that from the 2nd eq. and solve for "p":
p = 1475-2*575 = 325 cents
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popcorn = $3.75
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Cheers,
Stan H.
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