Percentage Problems and Equations

The video tutorial explains how to solve word problems involving discounts and percentages. It covers converting word problems into equations, calculating retail and sale prices, and solving percentage multiplication problems. The tutorial provides step-by-step guidance on using fractions to solve equations and emphasizes the importance of correctly interpreting word problems to avoid errors.

What is the first step in solving a word problem involving discounts?

• Convert the problem into an equation

• Guess the answer

• Look for similar problems

• Ask a friend for help

What is the equation to find the retail price if the discount is 20% and the discount amount is $45?

• 45 = retail price / 20%

• 45 = 20% * retail price

• Retail price = 45 - 20%

• Retail price = 45 + 20%

If a desk's retail price is $225 and the discount is $45, what is the sale price?

• $45

• $270

• $225

• $180

What is the first step in solving the lawn mower problem?

• Subtract 20% from the sale price

• Find the sale price

• Convert the word problem into an equation

• Guess the regular price

What is the correct equation to find the regular price of the lawn mower?

• 1600 = 20% of regular price

• 1600 = 80% of regular price

• 1600 = regular price - 20%

• 1600 = regular price + 20%

If a lawn mower is on sale for $1600, which is 20% off, what is the regular price?

• $1400

• $1800

• $2000

• $1600

What is the first step in solving a problem involving percentages of a number?

• Add the percentages

• Multiply the percentages

• Convert percentages to fractions

• Ignore the percentages

If 45 is 120% of a number, what is the number?

• 37.5

• 45

• 50

• 54

What is 80% of the number if 45 is 120% of it?

• 30

• 40

• 36

• 45