# Elementary Algebra Review Part 29

Taught by YourMathGal
• Currently 4.0/5 Stars.
6899 views | 2 ratings
Part of video series
Lesson Description:

Writing and solving an equation for a percent mixture problem and a percent increase problem.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

• How do you write and solve an equation for a percent mixture word problem?
• What does it mean to define a variable?
• How do you check your answer to a percent mixture word problem?
• How do you draw a picture to solve a percent mixture word problem?
• How many grams of water must be added to 50 grams of pure acid to make a solution that is 40% acid?
• How do you solve 0 + 50 = .4(w + 50)?
• How can you solve an equation by eliminating decimals from the beginning?
• If the price of a book is increased by 10%, and the book originally cost \$89.90, what is the new price of the book?
• How do you solve a percent increase problem by defining a variable and writing an equation?
• How do you solve 89.90 + .1(89.90) = n?
• #### Staff Review

• Currently 4.0/5 Stars.
This video explains a very unique and simpler percent mixture problem. All steps are explained very well. In addition, you will learn how to tackle a percent increase problem. These are great problems to learn how to solve.
• #### marionca57

• Currently 5.0/5 Stars.
Great job going step by step for a mixture problem, and I like how you draw a picture to start and check it.