Look at Part 1. What determines how much money Marcia will spend in a month at the gym?
The number of times she goes.
What expression can you write to reflect the amount of money she spends at the gym for any number of visits?
Look at Part 2. What equation can you write to represent this scenario?
How many times did she go to the gym last month? How do you know?
12 times, because
Look at Part 3. Which equation or inequality represents this scenario?
How did you know that you would need an inequality symbol for this problem?
It says that she doesn’t want to spend more than $30, so she could spend any amount that is less than or equal to $30.
Can she go to the gym 18 times and stay within her budget? How do you know?
No, she cannot;
Can she go to the gym 15 times?
Yes, she can;
Look at Part 4. What expression represents the amount that James pays in a month at his gym, for any number of visits?
If James spent $40 last month at the gym, what equation can you write to find the number of times he went?
What would be your first step to solve for
First subtract 10 from both sides, then divide both sides by 0.5.
Why did you start with subtraction and then division?
Answers vary; encourage a discussion of inverse operations and the correct order for solving.
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