The bill for a meal at a restaurant is $54.00 before taxes are added. the sales tax rate is 8% and you want to leave an 18% tip based on the pre-tax amount. what is the final amount you will pay?

To solve:
Find 8% of 54: 0.08*54=4.32
Find 18% of 54: 0.18*54=9.72

Then add those values plus the bill for the meal all together:
4.32+9.72+54=68.04

The final bill would be 68.04

Hey!

Alright, let's take a look at this problem.
The first step would be to rearrange the equation. To do that we will group the like elements.

Original Equation :
7x - 8 - 3x - 4

New Equation {Changed by Grouping Like Elements} :
7x - 3x - 4 - 8

Next, we'll add both the 7x and 3x since they both contain variables.

Old Equation :
7x - 3x - 4 - 8

New Equation {Changed by Adding Similar Elements} :
4x - 4 - 8

Again, we'll add the other similar elements in the equation.

Old Equation :
4x - 4 - 8

New Equation {Changed by Adding Similar Elements} :
4x - 12

Our equation can no longer be simplified any farther, so we have our final answer.

The equation 7x - 8 - 3x - 4 simplified is  4x - 12.

Hope this helps!

- Lindsey Frazier ♥