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13 September, 17:24

Solve for h and c to find what h and c equals; 34.50=4h+7c and 30.50=8h+3c

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  1. 13 September, 21:13
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    34.5=4h+7c

    (34.5-7c) / 4=h

    Put h = (34.5-7c) / 4 into another equation

    30.5=8h+3c

    30.5=2 (34.5-7c) + 3c

    30.5=69-14c+3c

    11c=38.5

    c=38.5/11

    Put c=38.5/11 into one of the equations

    to calculate the h.
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