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Labor Costs Suppose that a contractor employs carpenters, bricklayers, and plumbers, working three shifts per day. The number of labor-hours employed in each of the shifts is summarized in the following matrix:
Labor in shift 1 costs $20 per hour, in shift 2 $30 per hour, and in shift 3 $40 per hour. Use matrix multiplication to compute the dollar amount spent on each type of labor.
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Finite Mathematics & Its Applications (12th Edition)
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