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A restaurant customer left ​$1.80 as a tip. The tax was 8% and the tip was ​20% of the cost including tax.
a. Which information is not needed to compute the bill after tax and​ tip?
b. What was the total​ bill?
Question content area bottom
Part 1
a. Which information is not needed to solve this​ problem?
A.
The tax was ​8%.
B.
The customer left ​$1.80 as a tip.
C.
The customer left a ​20% tip.
D.
All of this information is needed to solve the problem.b.
The total bill is ​$?

Sagot :

Answer:The bill before tax was $8.33

Step-by-step explanation: Divide tip by portion of bill:

1.80/0.20 = 9.00

The total bill before the tip was $9.00

Divide total bill by 1+ sales tax rate:

9.00 / 1.08 = 8.33

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