Calculating Discounted Prices with Sales Tax

The video tutorial explains how to calculate the final cost of a $40 dress after applying a 30% discount and a 7% sales tax. It involves two main steps: first, calculating the discounted price by subtracting the discount from the original price, and second, applying the sales tax to the discounted price. The tutorial provides a step-by-step guide, including formulas and numerical examples, to arrive at the final price of $29.96.

What is the first step in solving the problem?

• Multiply the original price by the sales tax

• Add the original price

• Find the discounted price

• Calculate the sales tax

Which formula is used to calculate the discounted price?

• Original price / Percent discount

• Original price * Percent discount

• Original price - (Original price * Percent discount)

• Original price + (Original price * Percent discount)

How do you convert a percentage to a decimal?

• Divide by 100

• Subtract 100

• Add 100

• Multiply by 100

What is the decimal equivalent of 30%?

• 0.3

• 0.03

• 3

• 30

What is the discounted price of a $40 dress with a 30% discount?

• $12

• $28

• $30

• $40

What is the next step after finding the discounted price?

• Divide by the sales tax

• Subtract the sales tax

• Multiply by the sales tax

• Add the original price

What is the shortcut method for calculating the final price with sales tax?

• Multiply the sales tax by 0.07

• Multiply the sales tax by 1.07

• Subtract the sales tax from the discounted price

• Add the sales tax to the original price

What is the final price of the dress including a 7% sales tax?

• $28

• $29.96

• $40

• $30

Which formula summarizes the entire calculation process?

• Original price - (Original price * Percent discount)

• Original price * Percent discount

• Original price / Percent discount

• Original price + (Original price * Percent discount)

What is the purpose of the video tutorial?

• To explain how to calculate the original price

• To demonstrate how to find the discounted price and final price including sales tax

• To teach how to add sales tax to the original price

• To show how to subtract the sales tax from the discounted price