Jillian exercises 5 times a week. She runs 3 miles each morning and bikes in the evening. If she exercises a total of 30 miles for the week, how many miles does she bike each evening? 
+1904 Let b = number of miles Jillian bikes in the evening for one day; Let m = total number of miles; Let d = number of total days; Let r = number of miles Jillian runs in the morning for one day
\(b=(m-dr)/d\)
\(b=(30-3*5)/5\)
\(b=(30-15)/5\)
\(b=15/5\)
\(b=3\)
Jillian bikes for a total of 3 miles each evening
