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The charge for admission into the concert is $2.75 for adults and $1.50 for childeren. If 589 people paid to get into the concert and $1151 was collected, find the number of adults and the number of childeren who paid for tickets.

  • algebra -

    solve
    a + c = 589 with 2.75a + 1.5c = 1151

    I suggest changing the first to
    a = 589-c and subbing that into the second

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