NEED HELP DISTANCE TIME RATE PROBLEM!

A motorboat moving at a speed of 10km/hr, left a pier traveling against the current of the river. 45 minutes later after the boat left the pier, the motor of the boat broke, and the boat began drifting with the current. After 3hrs of drifting with the current, the boat was back at the pier where it had started. What is the speed of the current of the river?

Question

NEED HELP DISTANCE TIME RATE PROBLEM!

A motorboat moving at a speed of 10km/hr, left a pier traveling against the current of the river. 45 minutes later after the boat left the pier, the motor of the boat broke, and the boat began drifting with the current. After 3hrs of drifting with the current, the boat was back at the pier where it had started. What is the speed of the current of the river?

anonymous · Answer

@Zarkon @UnkleRhaukus

anonymous · Answer

At 10km an hour, how far did the boat go in 45 minutes?

agent0smith · Answer

^once you find that distance d, you can find the speed of the current, as it took 3 hours to travel that same distance. Distance = speed x time:

d = vt

where v is the speed of the current, and t is 3 hours. Rearrange to find v.

anonymous · Answer

d/3=v

agent0smith · Answer

yep, and you just need to find d from knowing it went 10km/h for 45 minutes.

anonymous · Answer

ok thanks

anonymous · Answer

@vmathhelp Do you still need further help?