4 adults and 3 children cost $40. Two adults and 6 children cost $38

Discussion in 'Calculator Requests' started by math_celebrity, Jan 11, 2022.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    4 adults and 3 children cost $40. Two adults and 6 children cost $38

    Givens and Assumptions:
    • Let the number of adults be a
    • Let the number of children be c
    • Cost = Price * Quantity
    We're given 2 equations:
    1. 4a + 3c = 40
    2. 2a + 6c = 38
    We can solve this system of equations 3 ways
    No matter what method we use, we get:
    • a = 7
    • c = 4
     

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