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22 December, 16:14

A DJ charges a flat fee of $120 plus $25 per hour. A second DJ charges $45 per hour after how many hours will the cost be the same?

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Answers (2)
  1. 22 December, 17:38
    0
    Answer: 6 hours

    Step-by-step explanation: to find the amount of the first DJ, use the equation 120+25x=y. For the second, use 45x=y. Then, substitute y for the first DJ. 120+25x=45x. Now, solve for x.

    120+25x=45x

    Subtract 25x from both sides

    120=20x

    Divide bith sides by 20

    6=x
  2. 22 December, 20:12
    0
    6

    Step-by-step explanation:

    5x+120=45x
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