glenn races his motorcycle 30 times last season. he finished first 12 times, second 5 times and crashed in 9 races. what percent of the races did he crash? set up a proportion and solve.
[percent of the races did Glenn crash]={[races crashed]/[total races]}*100 [percent of the races did Glenn crash]={[9]/[30]}*100 [percent of the races did Glenn crash]=[0.30]*100=30%
