Answer:
the answer is B. (15,4) :
Step-by-step explanation:
It’s going to be B. 50+60+70=180 which is how many degrees are in a triangle.
Answer:
Solution:
the boat's speed in still water: x
The speed with current: (x+3)
The speed against current: (x-3)
The equation is
3(x+3) = 4(x-3)
x = 21 mph
The distance = 3*(21+3)= 72 miles
I choose (A)
Step-by-step explanation:
