If a bird flies at a constant speed of 40 miles per hour and flies for 3 hours and 30 mins what distance will the bird have traveled?

180 miles because you know that in one hour the bird can 40 miles per hour so you want to times that by 3 hours and you get 160 miles but your not done. 30 minutes is half an hour so you want to find out half the miles so half o 40 is 20 so add the 20 onto the 160 and you get 180 miles.

3 hours and 30 minutes can be rewritten as 3.5 hours

If the bird is flying constantly for 3.5 hours at 40 miles per hour:

3.5 x 40 = 140 miles