Answer:
11.5 miles
Step-by-step explanation:
Total 60 miles includes running and biking
Let's find total run time.
4 times a week for 3 1/2 miles per run, so that is:
4 * 3.5 (3 1/2 means 3.5) = 14 miles
Total Run = 14 miles
From 60 miles, she runs 14 miles. So biking is 60 - 14 = 46 miles
4 times per week, that means each time:
46/4 = 11.5 miles of biking each day
Hence,
she bikes 11.5 miles per evening
