Question

Stella makes 2% royalties on a book she wrote. How much money did her book earn in sales last year if she made $53,000 in royalties?

Answer 1

`S=($53000)/.02=$2,650,000`

Explanation:

We can take the book sales (`S`), multiply it by the royalty percentage (`%`), and see how much she makes in royalties (`R`):

`S xx % = R`

Now let's substitute in what we know:

`S xx 2% = $53,000`

To find `S` (book sales) we now divide both sides by 2% (which is the same as 0.02):

`S=($53000)/.02=$2,650,000`