Solving Percent Problems with Proportions

In this video, YourMathGal, Julie Harland, explains how to solve percent problems using proportions. She provides two example problems: calculating the percent of students absent in a class and determining what percent 39 is of 52. The video covers setting up proportions, using cross multiplication, and simplifying fractions to find the solution. Julie emphasizes understanding the base and amount in percent problems and provides tips for identifying these components. The video concludes with a preview of future topics, including finding the amount or base when given the percent.

What is the main topic discussed in this video?

• Solving percent problems using proportions

• Understanding geometry

• Learning calculus basics

• Solving algebraic equations

If 3 out of 20 students are absent, what is the first step to find the percent absent?

• Subtract 3 from 20

• Multiply 3 by 100

• Add 3 and 20

• Divide 3 by 20

What is the purpose of setting up a proportion in percent problems?

• To find the total number of students

• To find a missing value in a ratio

• To compare two different classes

• To calculate the average score

How do you solve the proportion 3/20 = P/100?

• Add 20 to both sides

• Multiply both sides by 100

• Divide both sides by 3

• Cross multiply and solve for P

In the second problem, what is the base number?

• 75

• 100

• 52

• 39

What is the result of dividing 39 by 13 in the second problem?

• 5

• 4

• 3

• 2

What will be discussed in the next video according to the conclusion?

• Learning about calculus

• Finding the base given the percent

• Solving quadratic equations

• Understanding geometric shapes