Question

A coach buys a uniform and a basketball for each of the 15 players on the team. Each basketball costs $9. The coach spends a total of $420 for uniforms and basketballs. What is the cost of one uniform? Use a strategy that makes sense to you. Show your thinking!

Answer 1

$19

Explanation:

Since there are 15 players and he bought a basketball for each of them, he bought 15 basketballs in total.

The price of a basketball costs $9.

The total price of all 15 basketballs = $9 * 15 = $135.

He spent $420 on uniforms and basketballs, and he spent $135 on basketballs.

Thus, he spent $420 - $135 = $285 on uniforms.

As he bought a uniform for each of the 15 players, he bought 15 uniforms in total.

The price of 15 uniforms is $285.

The price of 1 uniform is $285 ÷ 15 = $19.

Answer 2

$19.

Explanation:

Let x be the cost of a uniform:

Then we have 15 (x + 9) = 420.

We can divide both side by 15, getting x + 9 = 28.

Then, we can subtract both sides by 9, getting x = 28 - 9 = 19.