Problema Solution

Salim sell 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 models did he sell

Answer provided by our tutors

let


x = the number of standard model machines sold, x>=0


y = the number of enhanced model machines sold, y>=0


Salim sold a total of 35 units:


x + y = 35


Salim took $12,575:


325x + 385y = 12575


by solving the system of equations:


x + y = 35


325x + 385y = 12575


we find:


x = 15 standard model


y = 20 enhanced model


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Salim sold 20 enhanced models.