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Math Help - mixture problem

  1. #1
    rcs
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    mixture problem

    find the cost per kilo of a coffee mixture made from 8 kls of coffee that cost $90 pero kilo and 12 kls of coffee that cost $55 pero kilo.

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  2. #2
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    Re: mixture problem

    Quote Originally Posted by rcs View Post
    find the cost per kilo of a coffee mixture made from 8 kls of coffee that cost $90 pero kilo and 12 kls of coffee that cost $55 pero kilo.
    cost/kilo = \frac{8 \cdot 90 + 12 \cdot 55}{8 + 12}
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  3. #3
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    Re: mixture problem

    8 kls = $90.00 = 90*8 =720--------- 1
    12 kls = $55.00 = 55*12 = 660 --------- 2
    Then the mixture of both is 20 Kls
    Total of equation 1 & 2 is 1380
    So , the mixture of 1 kls = (1380/20) = $69 / kls
    Last edited by brosnan123; June 25th 2013 at 03:18 AM.
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