Answer:
60% or .6
Explanation:
To find this, let's use the formula I was taught: P=nw. P stands for partial amount, n stands for the percent, and w stands for whole amount. In this case, 15 is the whole amount, and 9 is the partial amount. It would look like this: 9=n15. You would divide each number by 15 as it is the whole amount. 15/15 would cancel out and it would leave you with 9 divided by 15. If you solve it, you would end up with .6, which would be 60%.