Question

To prepare for his mountain biking trip, Rhyan bought four tire patches. Rhyan paid using a gift card that had $22.20 on it. After the sale, Rhyan’s gift card had $1.90 remaining.

Which equations could you use to find the price of one tire patch? Select all that apply.
4x – 1.9 = 22.2
4x – 22.2 = 1.9
4x + 1.9 = 22.2
4x + 22.2 = –1.9
22.2 – 4x = 1.9

Answer 1

4x + 1.9 = 22.2

22.2 - 4x = 1.9

Explanation:

Answer 2

4x + 1.9 = 22.2

22.2 - 4x = 1.9

Explanation:

Define the variable:

• Let x be the cost of one tire patch (in dollars).

Given information:

• Number of tire patches purchased = 4
• Total amount available to spend = $22.20
• Amount remaining after sale = $1.90

First equation

The cost of 4 tire patches and the amount remaining on the gift card equals the total amount on the gift card:

⇒ 4x + $1.90 = $22.20

⇒ 4x + 1.9 = 22.2

Second equation

The total amount on the gift card less the cost of 4 tire patches equals the amount remaining:

⇒ $22.20 - 4x = $1.90

⇒ 22.2 - 4x = 1.9