Your football team has a total of 50 jerseys. there are 15 medium-sized jerseys. what percent of the jerseys are medium-sized jerseys?

30% of the jerseys are medium-sized jersey :)

To find out the percentage of medium jerseys, take the fraction of medium jersey shirts over the number of total shirts.
15/50=.3
To turn that into a percentage, multiply that by 100 and add a percentage sign.
=30%
Hope this helps.