## SAT Math Tutorial

*Using percentages*

#### Intro

This is a sample SAT math problem, using percentages to add taxes and calculate prices.

#### Sample Problem

Aaron is staying at a hotel that charges $99.95 per night plus tax for a room. A tax of 8% is applied to the room rate, and an additional onetime untaxed fee of $5.00 is charged by the hotel. Which of the following represents Aaron’s total charge, in dollars, for staying x nights?

#### Solution

The hotel is $99.95/night, so if you are staying x nights:

The charge is (99.95)x without tax.

There is a tax of 8% applied to the room rate, so to add the tax to the price of the room, multiply the price of the room by a factor of 1.08.

Now the total cost is (1.08)(99.95x)

There is a onetime untaxed fee of $5.00, so we add 5 to the total

Finally total cost = 1.08(99.95x) + 5

# About The Author

Math/Economics Expert And SAT Math Tutor |

My name is Eleana. I am currently a 4th year student at McMaster University. I am majoring in Math and Statistics with a minor in Economics. I have been tutoring for several years and speak english fluently. I am offering math, statistics or economics tutoring for highschool or university studen... |