# SOLUTION: a machine company has an incentive plan for its salesperson.For each machine that a salesperson sell,the commission is \$40.The commission for every machine sold will inc

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 Question 153934This question is from textbook : a machine company has an incentive plan for its salesperson.For each machine that a salesperson sell,the commission is \$40.The commission for every machine sold will increase by \$0.04 for each machine sold over 600.For example the commission on each 602 machine sold is \$40.08. How many machines must salesperson sell in order to earn \$30,800 ? I already work this problem but i want to see how a professional would approach the this question. Thank you This question is from textbook Answer by stanbon(57290)   (Show Source): You can put this solution on YOUR website!a machine company has an incentive plan for its salesperson.For each machine that a salesperson sell,the commission is \$40.The commission for every machine sold will increase by \$0.04 for each machine sold over 600.For example the commission on each 602 machine sold is \$40.08. How many machines must salesperson sell in order to earn \$30,800 ? ------------- EQUATION: Commission = 40x + 0.04(x-600) where x is number of machines sold and the domain is x >= 600 ----------------------------- Find "x" if Commision is 30,800 30800 = 40x + 0.04(x-600) 40x + 0.04x - 24 = 30800 40.04x = 30824 x = 768.83 Rounding up the salesperson must sell 769 machines. =================== Cheers, Stan H.