Question 836211: You are at a restaurant and the total bill, including meal (food & tax) is $85.00. You left an 18.5% tip. How much was the meal?
I assume this is how much is the meal w/tax? Right? Because you can't know the rate of the tax from the information given.
$85.00
-18.5 % ($15.73)
equals
$69.27paid for the meal including taxes
Found 2 solutions by richwmiller, KMST:
Answer by richwmiller(17219)   (Show Source):
You can put this solution on YOUR website! You are right! There is no way to tell the tax rate from the info given.
We also don't know if the tip is on the meal plus tax or just on the meal.
Very poorly written question.
100.725 if we and 18.5% to the 85 dollars.
The cost of the meal itself will remain unknown but meal, tax and tip was $100.73
I would have left $100 and be done with it. 18.5 % is too much of a tip anyways
Answer by KMST(5328)  (Show Source):
You can put this solution on YOUR website! Actually, if you spent a total of $85.00 including meal, tax(if any) and tip, your meal (with tax if restaurant meals are taxed in the state/country where you ate) was $71.73, and you left a tip of 18.5% of $71.73, which added $13.27 for a total amount spent of
$71.73 + $13.27 = $85.00.
Here is how I calculate it:
 = amount, in $, billed for food plus tax (if any)
 = amount, in $, left as tip
 = total amount spent, in $.
The equation I get is  and I solve it by dividing
I do not get an exact number.
I get $71.72996 (rounded to 5 decimal places).
It rounds to 71.73.
If 71.73 was the amount, in $, billed for food plus tax (if any),
 would be the 18.5% tip (18.5% of 71.73).
You would round that to 13.27, and
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