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8 November, 22:24

Two mechanics worked on a car. First mechanic worked 20 hours, and the second worked 5 hours. Together the charged $1800. What was the rate charge by each if the some of both rates was 135 per hour?

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  1. 9 November, 01:09
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    Step-by-step explanation:

    let one charge=x

    second charge=135-x

    20x + (135-x) 5=1800

    4 x+135-x=360

    3x=360-135=225

    x=75 $

    first charges $ 75 for 20 hours

    second charges = 135-75=$60 for 5 hours.
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