SOLUTION: A sales receipt has a final total of $84 after a 12% tax was added. What was the pre-tax total?

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Question 853262: A sales receipt has a final total of $84 after a 12% tax was added. What was the
pre-tax total?
Answer by JulietG(1812) About Me  (Show Source):
You can put this solution on YOUR website!
12%! That's outrageous. Must be New York City ;-)
.
Amount + .12 of the amount = 84
1.12X = 84
Divide each side by 1.12
84/1.12
x = 75
.
Let's work it backward to make certain it's correct.
75 * .12 = 9
75 + 9 = 84
success!