contestada

A boat makes a 120-mile trip downstream in 3 hours but makes the return trip in 4 hours.
If b = the rate of the boat in still water and c = the rate of the current, which of the following equations represents the trip upstream?
3(b - c) = 120
4(b - c) = 120
4(b + c) = 120

Respuesta :

4(b-c)=120. 

The speed is the spped of the boat minus the speed of the stream, since it's going upstream. If it was downstream, it would have been plus. 
It's a 4, not a 3 since that represents the time that it goes upstream. 

It all uses the formula S=v*t and all the possible variants of it.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
jhbtvcfvbvhtrew322

Answer:

4(b-c)=120

Step-by-step explanation:

Otras preguntas