In 6 hours a boat, traveling with the current, covers 20 more mi than in 10 hours, traveling against the current. what is the speed of the current if the speed of the boat in still water is 15 mph?

answer:

5

step-by-step explanation:

45

67

46

12

23

35

3

90

12

123

im not quite sure if this is right but i got 5.6 oisutuve

step-by-step explanation:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square