Question

What is the equation one can use to calculate the unit price for a 28 ounce jar of spaghetti sauce priced at $2.89?

Answer 1

Approximately `10` cents per ounce

Explanation:

To calculate the unit price (how much `1` ounce costs), divide the cost of `28` ounces by `28`.

`2.89/28=0.10321428571`

`2.89~~0.10`

To use an equation with `c` representing the unit price:

`28c=2.89 rarr 28` times the unit price equals `$2.89`.

`c=0.10321428571`