Question

At the beginning of the school year, Jayden's mother put $80 in his cafeteria account. Each time Jayden orders lunch, it deducts $2.75 from his account balance.

Answer 1

`y = 80 - 2.75n`

Explanation:

Given

`Beginning = 80`

`Rate = 2.75`

Required

Model the situation using an equation

Represent the number of orders with n

Represent the balance with y

y is calculated as:

`y = Beginning - Rate * n`

We used minus because the amount is being deducted

`y = 80 - 2.75* n`

`y = 80 - 2.75n`