8.4 Pretest

Front

What is the equation to represent the total number of apples (x) and strawberries (y) Tay used if they used 52 pieces of fruit?

Back

x + y = 52

Front

If Tay used 13 apples, how many strawberries did they use?

Back

39 strawberries

Front

What is the first step to solve the equation x + y = 52 if x = 13?

Back

Substitute 13 for x: 13 + y = 52.

Front

What is the solution to the equation 13 + y = 52?

Back

y = 39.

Front

What is the importance of defining variables in a word problem?

Back

Defining variables helps to translate the problem into mathematical equations.

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.

Front

What is a common method to solve linear equations?

Back

Isolate the variable on one side of the equation.

Front

In a savings problem, if Josiah saves $5 each week and Kiri saves $3 each week, how much will they have saved after 4 weeks?

Back

Josiah: $20, Kiri: $12. Josiah has more.

Front

What is the formula for calculating total savings over time?

Back

Total Savings = Weekly Savings × Number of Weeks.

Front

What is a linear equation?

Back

An equation that makes a straight line when graphed, typically in the form y = mx + b.