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15 March, 09:41

Maria is hosting a party. She places an order at pizza hut for 5 pizzas and 4 breadsticks for a total of $51. Halfway through the party, she realized that she will need one more pizza and 2 more breadsticks. This time she was given a total of $15. How much does a pizza cost? How much does a breadstick cost?

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  1. 15 March, 11:02
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    5p+4b=51

    (p+2b=15) - 2

    5p+4b=51

    -2p-4b=-30

    3p=21

    21/3=7=pizzas

    5 (7) + 4b=51

    4b=16

    16/4=4 = breadsticks

    Pizzas cost $7 and breadsticks cost $4

    Tell me if it works!
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