Calculating Costs with Tax and Tips

The video tutorial explains how to solve problems involving discounts, taxes, and tips. It provides examples of calculating tax on a computer and a laptop, determining discounts on various prices, and adding tips to food bills. The tutorial emphasizes using percentages and calculators to find the final selling prices after applying taxes, discounts, or tips.

What is the main similarity between discount, tax, and tip problems?

• They all involve multiplication.

• They all involve subtraction.

• They all involve division.

• They all involve percentage calculations.

If a computer costs $600 and the tax rate is 5%, what is the total cost?

• $600

• $630

• $660

• $690

How do you calculate the total cost of an item with tax?

• Subtract the tax percentage from the original price.

• Multiply the original price by 1 plus the tax percentage.

• Multiply the original price by the tax percentage.

• Add the tax percentage to the original price.

A laptop costs $450 and the tax rate is 6%. What is the total cost?

• $450

• $477

• $500

• $480

What is the total cost of an item priced at $500 with a 30% discount?

• $350

• $400

• $450

• $500

How do you calculate the price after a discount?

• Subtract the discount percentage from the original price.

• Multiply the original price by the discount percentage.

• Multiply the original price by 1 minus the discount percentage.

• Add the discount percentage to the original price.

What percentage of the original price do you pay if there is a 30% discount?

• 30%

• 50%

• 70%

• 100%

If a $500 item is discounted by 30%, how much is the discount amount?

• $150

• $200

• $250

• $300

An item costs $120 and has a 12% discount. What is the final price?

• $120

• $110

• $105.60

• $115

What is the decimal equivalent of a 12% discount?

• 0.8

• 1.12

• 0.88

• 0.12