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24 August, 05:24

Mike works a total of 57 hr per week at his two jobs. He makes $7 per hour at job A and $8 per hour at job B. If his total pay for one week is $421 before taxes, then how many hours does he work at each job?

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  1. 24 August, 07:08
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    Answer: He work at A for 35 hours

    He work at B for 22 hours

    Step-by-step explanation:

    Let the number of hours be A and B

    He works a total of 57 hr per week at his two jobs

    A + B = 57 ... (1)

    He makes $7 per hour at job A and $8 per hour at job B and the total pay for one week is $421

    7A + 8B = 421 ... (2)

    Solve equation 1 and 2 simultaneously

    7A + 7B = 399

    7A + 8B = 421

    B = 22 hours

    Substitute B in equation 1

    A + 22 = 57

    A = 35 hours
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