Understanding Variables and Equations

The video tutorial covers the concepts of independent and dependent variables, using examples such as Marcus's reading habits, Kyra's website design, and Carlos's school supplies. It explains how to identify these variables and create equations to model real-world situations. The tutorial also includes practice problems and retrieval exercises to reinforce learning.

What is the role of an independent variable in an equation?

• It changes based on the dependent variable.

• It remains constant and influences the dependent variable.

• It is always a numerical value.

• It is not used in equations.

In the reading example, what does the variable 'D' represent?

• Reading speed

• Number of books

• Number of days

• Total minutes read

How many websites can Kyra design in 3 weeks?

• 15 websites

• 9 websites

• 6 websites

• 12 websites

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

• W = n/3

• W = 3n

• W = n - 3

• W = 3 + n

In the school supplies problem, what is the cost of one notebook?

• $2

• $1

• $4

• $3

What is the equation for the total cost of Carlos's school supplies?

• T = 2n + 3

• T = 5n

• T = 3n + 2

• T = n + 5

How many buns are in 4 packages of hot dog buns?

• 24 buns

• 32 buns

• 36 buns

• 28 buns

What is the equation to find the total number of buns?

• B = P - 8

• B = 8P

• B = 8 + P

• B = P/8

In the paint mixing example, how many parts blue are in the Granny Smith apple green?

• 1 part

• 4 parts

• 3 parts

• 2 parts

What is the mixing ratio for Totally Teal?

• 1 part blue, 4 parts green

• 2 parts blue, 3 parts green

• 3 parts blue, 2 parts green

• 4 parts blue, 1 part green