SOLUTION: A sales person earns $80 for every computer he sells. He earns an additional $250 for every 10 computers he sells that month. How many computers does he need to sell in order to ea

Question 668457: A sales person earns $80 for every computer he sells. He earns an additional $250 for every 10 computers he sells that month. How many computers does he need to sell in order to earn $2,340 in a month?
..the only thing I could think of was this:
250/80=2,340/x

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

A sales person earns $80 for every computer he sells. 

He earns an additional $250 for every 10 computers he sells that month.

Earnings = 80x + 250(x/10) = 2340

                     105x = 2340

                        x = 22.3   At least 23.  

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