Question

of the 200 packages of bagels sold, 15 of them are sesame seed bagels. what percent of the bagel packages sold are sesame seed bagels.

Answer 1

15/200 is 0.075. If you move the decimal place to the right two spots, you have your percentage, which is 7.5%
7.5% were sold as sesame seed bagels.

Answer 2

As in the other question, we can find the answer by doing a simple equation:

15 = x% from 200
15 = $\frac{x}{100}$ * 200
15 = 2x                   / ÷ 2 (both sides)
x = 7.5 [percent]

Answer: 7.5% of bagel packages are sesame seed bagels.