Question

Sierra left $4.50 as a tip for a waiter. This was 18% of the bill before the tip. How much was her total bill before the tip?

Answer 1

Answer:$25

Explanation:

18% of a=4.5

18/100 x a=4.5

9/50 x a=4.5

9a/50=4.5

Cross product

9a=50 x 4.5

9a=225

Divide both sides by 9

9a/9=225/9

a=25