3/10 times 2/3 3 times 2 is 5 and 10 times 3 is 30 5/30 a
It's the letter D hope it helps
Hmmm I think either D or C
Answer:
Speed of river's current = 5 mph
Step-by-step explanation:
Let 'd' be the distance covered
Let x be the speed of the rivers current
Speed upstream = 15-x
speed downstream = 15+x
Time = distance / speed
time upstream = 
time downstream = 
the ferry trip upstream takes twice as long as its return trip downstream
= 
divide both sides by d
= 
cross multiply


Add 2x on both sideds

subtract 15 from both sides and divide by 3

x=5
Speed of river's current = 5 mph
The answer is d because 4+8=12 and they are 4 units away from eachother:)