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5 July, 05:22

Jessica worked 2 part-time jobs and earned $324.50 for working a total of 32 hours. She is paid $12.00 per hour at Job A and $8.50 per hour at Job B. How many hours did Jessica work at Job A?

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  1. 5 July, 06:16
    0
    Step-by-step explanation:

    So our equation would be:

    12.00x + 8.50y = 324.50

    x + y = 32 hours

    lets set the last one to x = 32 - y and plug it in.

    12 (32-y) + 8.5y = 324.5

    384 - 12y + 8.5y = 324.5

    subtract 384 from both sides and add y to each other:

    -3.5y = - 59.5

    Divide by - 3.5

    y = 17 hours worked
  2. 5 July, 07:20
    0
    Jessica worked 13.5 hours at job A
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