Anthony1980 Anthony1980

01-09-2016
Mathematics

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The cost C (in dollars) of making n watches is represented by C=15n+85. How many watches are made when the cost is $385

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halicora1738 halicora1738

01-09-2016

20 watches

385=15n+85
so you subtract 85 from 385 which is 300 then divide 300 by 15 and you get
'n'
which is 20

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