Monthly Costs and Variables in Examples

The video tutorial covers lesson 31, focusing on understanding independent and dependent variables through practical examples. It includes calculating reading time over days, designing websites over weeks, and determining streaming costs based on the number of movies. The lesson emphasizes creating equations and tables to represent these relationships.

What is the independent variable in the example of Marcus reading each night?

• Number of days

• Total minutes read

• Number of books

• Time of day

How many minutes does Marcus read by the end of the third day?

• 60 minutes

• 120 minutes

• 150 minutes

• 90 minutes

In the example of Kyra designing websites, what does the variable 'W' represent?

• Number of hours

• Number of websites

• Number of weeks

• Number of clients

What is the equation used to calculate the total number of websites Kyra can design?

• D = W + 3

• W = 3D

• 3D = W

• D = 3W

What is the independent variable in Praia's movie streaming example?

• Number of streaming services

• Total cost per month

• Number of movies streamed

• Monthly fee

How much does Praia pay if she streams 5 movies in a month?

• $10.50

• $12.50

• $15.50

• $14.00

What is the fixed monthly fee charged by the movie streaming service?

• $7

• $5

• $10

• $3

What is the cost per movie streamed in Praia's example?

• $2.50

• $2.00

• $1.50

• $1.00

What is the total cost for streaming 6 movies in a month?

• $15.00

• $14.50

• $14.00

• $13.00

What is the equation used to calculate the total monthly cost in Praia's example?

• C = 5 + 1.50X

• C = 5X + 1.50

• C = 1.50 + 5X

• C = X + 5