Percentage Calculations and Applications

This video tutorial covers various applications of percentage calculations. It begins with an example of model cars to explain how to calculate percentages. The tutorial then moves on to determine the percentage of students taller than 60 inches, calculate a 15% tip on a restaurant bill, and convert days to hours to find a percentage. It also includes examples of calculating fan percentages at a basketball game, determining the percentage increase in plant height, and calculating the required number of signatures based on a percentage increase.

Cory has 80 model cars, which is 25% more than Everett. How many cars does Everett have?

• 70

• 64

• 60

• 75

If 75% of the students in Jesse's class are 60 inches or taller, and there are 20 students in total, how many students are 60 inches or taller?

• 15

• 18

• 10

• 12

Bobby wants to leave a 15% tip on an $18 bill. How much should the tip be?

• $2.50

• $2.70

• $3.00

• $3.20

Express 9 hours as a percentage of 3 days.

• 10%

• 12.5%

• 20%

• 15%

If there are 370 fans cheering for School A and 555 for School B, what percentage of School B's fans are School A's fans?

• 60%

• 66.67%

• 70%

• 75%

Express the number of fans cheering for School B as a percentage of those cheering for School A.

• 100%

• 200%

• 120%

• 150%

A plant grows from 40 inches to 48 inches in a week. What is the percentage increase in its height?

• 20%

• 30%

• 15%

• 25%

Lauren obtained 672 signatures, which is 40% more than needed. How many signatures did she originally need?

• 480

• 450

• 520

• 500