Understanding Discounts and Original Prices

This video tutorial from MooMooMath and Science explains how to calculate the original price of an item given its discounted price. It uses three examples: a T-shirt, a used car, and a refurbished computer. The video demonstrates the formula: original price times (100% minus discount percent) equals the discounted price. Each example is solved step-by-step, showing how to convert percentages to decimals and solve for the original price using division. The video concludes with a reminder to use the formula and encourages kindness.

What is the formula used to find the original price from a discounted price?

• Discounted Price = Original Price + Discount

• Original Price = Discounted Price / (1 - Discount Percentage)

• Original Price = Discounted Price * Discount Percentage

• Discounted Price = Original Price * Discount Percentage

If a T-shirt is sold for $15 after a 25% discount, what was its original price?

• $25

• $20

• $30

• $18

In the T-shirt example, what percentage of the original price is the discounted price?

• 100%

• 50%

• 25%

• 75%

Drew bought a car for $3,000, which was 70% of its original price. What was the original price?

• $4,000

• $7,000

• $5,000

• $10,000

What is the remaining percentage of the original price after a 70% discount?

• 70%

• 100%

• 30%

• 50%

A refurbished computer is sold for $800 after a 40% discount. What was its original price?

• $1,333.33

• $1,200

• $1,000

• $1,500

In the computer example, what is the percentage of the original price that the sale price represents?

• 50%

• 60%

• 40%

• 80%

What is the first step in converting a percentage to a decimal?

• Add 100 to the percentage

• Divide by 100

• Move the decimal point two places to the left

• Multiply by 10

What is the purpose of dividing both sides of the equation by the decimal form of the remaining percentage?

• To check the calculation

• To solve for the original price

• To eliminate the variable

• To find the discounted price

What is the key takeaway from the video regarding calculating original prices?

• Always add the discount to the sale price

• Use the formula: Original Price = Discounted Price / (1 - Discount Percentage)

• The original price is always double the discounted price

• Discount percentages are not important