Question

The price p of a gallon of gas goes up to $0.05 cents on Friday. On Saturday the price goes down $0.03. Write a expression with three terms to show the price of a gallon of gas on Saturday.

Answer 1

The expression with three terms to show the price of a gallon of gas on Saturday is ⇒
`p+0.05-0.03`

Explanation:

Given:

Price of a gallon of gas in dollars =
`p`

On Friday, the price goes up by = $0.05

On Saturday, the price goes down by = $0.03

To write an expression with three terms to show the price of a gallon of gas on Saturday.

Solution:

Initial price of a gallon given in dollars was =
`p`

On Friday the price increased by $0.05.

So, the price on Friday in dollars can be given as =
`p+0.05`

On Saturday, the price decreased by $0.03

So, the price on Saturday in dollars can be given as =
`p+0.05-0.03`

Thus, the expression with three terms to show the price of a gallon of gas on Saturday is ⇒
`p+0.05-0.03`