![subject](/tpl/images/cats/mat.png)
Mathematics, 25.11.2020 22:20 cammie5292
Q: It took a patrol boat 5 hours to travel 60 km up a river against the current, and 3 hours for the return trip with the current. Determine the speed of the boat in still water and the speed of the current.
Let x be the speed of the boat in still water in km/hr
Let y be the speed of the current in km/hr.
*the 2 equations are x+y=20 and x-y=12 however I don’t understand why. Can someone explain?
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 13:00
Average salary for a medical assistant is $31,220 which is a 20% income tax bracket how much money would they pay in income tax?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 03:40
What is the following sum in simplest form? square root 8 + 3 square root 2 + square root 32
Answers: 1
![question](/tpl/images/cats/mat.png)
You know the right answer?
Q: It took a patrol boat 5 hours to travel 60 km up a river against the current, and 3 hours for the...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 29.04.2021 05:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 29.04.2021 05:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 29.04.2021 05:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 29.04.2021 05:30
![question](/tpl/images/cats/mat.png)
Mathematics, 29.04.2021 05:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 29.04.2021 05:30
![question](/tpl/images/cats/istoriya.png)
History, 29.04.2021 05:30
![question](/tpl/images/cats/mat.png)
Mathematics, 29.04.2021 05:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 29.04.2021 05:30