SOLUTION: Carol earns $250.00 plus 7% of her weekly sales. If she earns $1097.91, what were her weekly sales?

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Question 168782: Carol earns $250.00 plus 7% of her weekly sales. If she earns $1097.91, what were her weekly sales?
Found 2 solutions by Mathtut, jim_thompson5910:
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
let x be weekly sales
250+.07x=1097.91
:
.07x=847.91
:
highlight%28x=12113%29dollars in weekly sales

Answer by jim_thompson5910(21685) About Me  (Show Source):
You can put this solution on YOUR website!
Note: 7% = 7%2F100+=+0.07


Let x=weekly sales


Since "Carol earns $250.00 plus 7% of her weekly sales", this translates to y=0.07x%2B250 where "y" is the amount she earned in total


y=0.07x%2B250 Start with the given equation


1097.91=0.07x%2B250 Plug in y=1097.91


1097.91-250=0.07x Subtract 250 from both sides.


847.91=0.07x Subtract


847.91%2F0.07=x Divide both sides by 0.07 to isolate x


12113=x Divide


So the answer is x=12113 which means that her weekly sales was $12,113