bettygrice bettygrice

30-11-2017
Mathematics

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When x hundred pairs of skates are produce by c(x) =0.1x2-0.3x+0.625 when c(x) is hundreds of dollars what is the cost and how many should be produce to achieve the minimum

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kotime1 kotime1

30-11-2017

0.1x * 2 - 0.3x + 0.625 = 0
0.2x - 0.3x + 0.625 = 0
-0.1x + 0.625 = 0
0.1x = 0.625
x = 6.25

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