Question
Asked Nov 10, 2019
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An engineer charges $60 per hour and his assistant receives $20 per hour. For a certain job, a client recieved a bill of $580. If the assistant worked for 5 less hours than the engineer, how much time did each one worked?

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Expert Answer

Step 1

Calculation:

Let x be the time that engineer worked.

From the given in...

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60х + 20(х-5) - 580 60x 20x-100 580 80x-100 580 80x 580100 80x 680 680 х — 80

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