Writing and Solving Equations

Mathematical Equivalence

ON

Two eighth grade classes are selling raffle tickets to raise money

1. 1. One class is selling tickets for $2.50 each and has already raised $350

2. 2. The other class is selling tickets for $3.00 each and has already raised $225

3. Which equation can be used to find t, the number of tickets each class needs to sell so that the total amount raised is the same for both classes?

• 2.5t+350=3t+225

• Not here

Mathematical Equivalence

ON

Mr. Bradshaw has $330 in his savings account when Ms. Gates opened a savings account with zero dollars.

Mr. Bradshaw deposited $30 into his account each week for x weeks

Ms. Gates deposited $50 into her account each week for x weeks

The accounts DID NOT earn interest

Which inequality represents this situation when the amount of money in Mr. Bradshaw's account greater than the amount of money in Ms. Gates account?

Mathematical Equivalence

ON

Katy wants to enroll in art school. School A charges a monthly charge of $17.50 and a one-time enrollment fee of $55. School B charges a monthly charge of $12.50 and a one-time enrollment fee of $95. Which inequality can be used to find x, the maximum number of months Katy is enrolled so that the total charge of School A is less than the total charge of School B?

Mathematical Equivalence

ON

Mathematical Equivalence

ON

A group of friends wants to go to the amusement park. They have $113.50 to spend on parking and admission. Parking is $17.50, and tickets cost $24 per person, including tax. Which equation could be used to represent the context if x represents the number of people who can go to the amusement park? How many people can go to the amusement park?

Equation:​ (a)  

How many people?​ (b)  

• 4
• 5
• 6

Mathematical Equivalence

ON