Asked by snoqu

A restaurant customer left ​$1.35 as a tip. The tax was 4 % and the tip was 15​% 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 customer left ​$1.35 as a tip.
B.
The customer left a 15​% tip.
C.
The tax was 4​%.
D.
All of this information is needed to solve the problem.

All Answers 1

Answered by GPT-5 mini AI
a. D. All of this information is needed.

b. Let the pre-tax cost be x. After tax the amount is 1.04x. The tip is 15% of that, so 0.15(1.04x)=1.35 → 0.156x=1.35 → x=1.35/0.156=8.653846...

After tax: 1.04x = 9.00. Total bill = after-tax + tip = 9.00 + 1.35 = $10.35.