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anonymous

  • 4 years ago

John wants to plan a big party for his parents' 25th anniversary. Jill's Catering charges $100 to rent their building and $30 per dinner. El Sombrero charges $150 to rent their facility and $25 per plate. For how many guests will the cost be in the same at the two caterers?

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  1. anonymous
    • 4 years ago
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    The sum is the same and is presented like this: S = initialFee + guests * costPerGuest S(Jill) = 100 + 30x S(Sombrero) = 150 + 25x 100 + 30x = 150 + 25x 5x = 50 x = 10 Test drive: 10 guests at Jill's will cost 100 + 30 * 10 = 400 10 guests at the Sombrero will cost 150 + 25 * 10 = 400

  2. anonymous
    • 4 years ago
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    After that Sombrero is cheaper of course, 11 guests at Jill's for 430 vs Sombrero's 425.

  3. anonymous
    • 4 years ago
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    And for <=9 Jill's was cheaper.

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