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7 April, 02:10

Karen makes $5 per hour baby-sitting and $12 per hour giving music lessons. one weekend, she worked a total of 18 hours and made $139. how many hours did she spend baby-sitting?

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  1. 7 April, 03:53
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    5x + 12q = 139

    x + q = 18

    Karen worked 11 hours babysitting and 7 hours giving music lessons.
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