Question

Mrs. Perrin, the school music teacher, spent twice as much money on sheet music as she did on CDs. How much money did Mrs. Perrin spend on sheet music?

The total amount of money that she spent for sheet music and CDs was one third of her monthly music budget of $189.

Answer 1

`$42`

Explanation:

Well, she spent a total of `1/3` of her monthly music budget, which is `$189`.

So, she spent a total of `$189/3=$63`.

Let's say she spent `$x` on CDs, so that must mean that she spent `$2x` on sheet music ("spent twice as much money on sheet music as she did on CDs").

Then, we can setup the following equation.

`x+2x=63`

`3x=63`

`x=21`

`:.2x=42`

So, she spent `$42` on sheet music.