Question

A bird leaves its nest and travels 20 miles per hour downwind for xx hours. On the return trip, the bird travels 4 miles per hour slower and has 6 miles left after xx hours.
a. What is the distance of the entire trip?
b. how long does the entire trip take?

Answer 1

20 = d/t
16 = (d-6)/t
d = 20t
16 = (20t-6)/t
16 = 20-6/t
-4 = -6/t
t = 6/4 = 1.5 hours
d = 20*1.5=30 miles
a 30+30=60
b 1.5+1.5+6/16= 3 3/8