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Mrs. Browns girls scout troop had a carwash to earn some funds. they saved 1/6 of the money. They used 1/2 of the money to go horseback riding. They then had $100 left. How much did they initially make washing cars/

  • math -

    If you have a certain amount of money, then take away 1/6 of that amount and 1/2 of that amount, you'll have $100. So if "M" is money.

    M - (1/6))M - (1/2)M = 100

    1/2 is 3/6. So

    M - (4/6)M = 100

    (2/6)M = 100

    M = 600/2

    OR...$300

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