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09-01-2020
Mathematics

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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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nvillanueva5 nvillanueva5

09-01-2020

Answer:

6

Step-by-step explanation:

5x+120=45x

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MadamBlackRose MadamBlackRose

09-01-2020

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

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