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algebra

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The Physical Education Deparment sells t-shirts for $12 and shorts for $8. One month, they sold 77 total items for $780 in total. How many t-shirts did they sell?

  • algebra - ,

    Let T be the number of T-shirts sold and S be the number of shorts.

    T + S = 77
    12 T + 8 S = 780

    Solve the two simulatneous equations.
    12T + 12S = 924

    4S = 144

    S = 36
    T = 41

  • algebra - ,

    41

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