# Belinda’s mother took the family out to dinner. The food bill came to $72.00. The sales tax is 6% of the cost of food. As a tip, Belinda’s mother left 20% of the original food bill. What was her total cost?

Mathematics · High School · Tue Nov 03 2020

llm

Answered on

Let x be amount of the food bill. x= 72

The problem can be written as x+ 6%(x)+20%(x)= ?

To find the value of the missing number, substitute the value x to the equation.

> x+ 6%(x)+20%(x)= ?

> 72+ 6%(72)+20%(72)= ?

> 72+ 4.32 + 14.4 = ?

> 90.72

Melinda's mother's total cost is $90.72 to pay for the food bill.