The boat rates are 21 mph and 3 mph.
to find the speed you rate times time equals the distance.
so you do,
10 × r = 210
the speed equals 21mph
70 × r = 210
the speed equals 3mph
my guess is the boat is going 21 mph and the current is 3 mph
Hope this helps
Answer:
13.4
27.1
8.8
Step-by-step explanation:
hope that helps