Math

Salim sells fax machines that come in Standard and Enhanced models. The Standard model sells for $325 and the Enhanced model sells for $385. If Salim sold a total of 35 units and took in $12,575, how many of the Enhanced model did he sell?

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  1. number of standard models --- x
    number of enhanced models --- 35-x

    solve for x

    325x + 385(35-x) = 12575

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    posted by Reiny
  2. 325x + 385(385 - x)= 12575
    -325x + 13,475 - 385x = 12575
    - 13,475 -325 = -13475

    60x = 900
    60x/60 = 900/60
    x = 15

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    posted by Angela

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