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4 April, 10:03

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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  1. 4 April, 11:39
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    20 watches are made since 385 = 15n + 85. 385 - 85 is 300 and 300 divides by 15 is 20.
  2. 4 April, 13:11
    0
    I believe the answer is 20.

    C = 15n + 85

    $385 = 15n+85

    $385-85 = 300

    300/15 = 20
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