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26 June, 23:42

The company discovered that it costs $61 to produce 3 calculators, $165 to produce 7 calculators and $385 to produce 12 calculators how much does it cost for 6 calculators

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  1. 27 June, 00:59
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    You use ax^2+bx+c=c (x)

    Use (3,61), (7,165), and (12, 385) = those are your a and b (a, b) ...

    a = 2

    b = 6

    c = 25

    c (x) = 2x^2+6x+25

    Since you're looking for the price of six calculators, substitute 6 in for x

    c (6) = 2*36 + 6*6 + 25

    Calculate ...

    Answer: $169
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