# Percent Problems

Taught by muchomath
• Currently 2.0/5 Stars.
8213 views | 2 ratings
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson on percent problems, Professor Perez teaches students how to write and solve equations from percent word statements. Students learn how to find a percent of a number and what number is some percent of another number. The lesson includes examples of equations to translate into mathematical statements and solve for an unknown variable, X. Students also learn how to change fractions to decimals and decimals to percents.

Lesson Description:

Writing and solving equations from percent word statements. Finding a percent of a number and finding what number is some percent of another number.

Created by and copyright of Larry Perez. Funded by the state of California through Saddleback College. More information on videos, resources, and lessons at Algebra2Go.

• How do you write and solve equations from percent word statements?
• What number is 50% of 30?
• How do you solve x = 0.50*30?
• What number is 36% of 54?
• How do you solve x = 0.36*54?
• What percent of 54 is 17?
• How do you solve x*54 = 17?
• 24 is what percent of 60?
• How do you solve 24 = x*60?
• How do you change a decimal to a percent?
• 4/7 is what percent of 5/8?
• How do you solve 4/7 = x*5/8?
• #### Staff Review

• Currently 4.0/5 Stars.
This lesson goes through many different example problems that are very common. The topic covered is figuring out what number is a certain percent of another number or what percent one number is of another number. Decimals and fractions are included in these problems as well. The steps and concepts are explained very well in this video.
• #### Pennywenny

• Currently 1.0/5 Stars.
confusing. rather use the formula 3/8 : x/100