Joan has started a physical fitness program. One of her goals is to be able to run at least 5 miles without stopping. She can now run 3.5 miles without stopping. How many more

miles must she run non-stop to achieve her goal?

1.5 miles

Step-by-step explanation:

Since Joan need to run 5 miles without stopping and already runs 3.5 miles without stopping, the number of miles more she must run non-stop to achieve her goal of 5 miles without stopping is the difference between her 5 mile goal and her current run of 3.5 miles.

So, number of miles she must run = 5 miles - 3.5 miles = 1.5 miles.

So, Joan must run 1.5 miles more non-stop to achieve her goal.