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algebra 1 part 2

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Bobbie has 45 coins in dimes and quarters. The total value of the coins is $7.65. How many quarters and dimes does have?

  • algebra 1 part 2 - ,

    q + d = 45

    q = 45-d

    10d + 25q = 7.65

    Substitute 45-d for q in last equation and solve for d. Insert that value into the first equation and solve for q. Check by inserting both values into the last equation.

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