SOLUTION: a sales woman at a car dealership earns $1200 per month plus a %5 commision on her total sales. If she earned $5000 last month, what was the amount of her sales?

Question 677109: a sales woman at a car dealership earns $1200 per month plus a %5 commision on her total sales. If she earned $5000 last month, what was the amount of her sales?
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
e = .05s + 1200
where e is earnings and s is sales
...
5000 = .05s + 1200
solve for s
5000 - 1200 = .05s
3800 = .05s

...
Check
.05(76000) + 1200 = 3800 + 1200 = 5000
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