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ajwiebel3475
03.02.2020 •
Mathematics
Swimming downstream a swimmer can cover o.5 mile in 10 minutes it takes the swimmer 30 minutes to swim back up the stream find the speed of the swimmer in still water and the speed of the current
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Ответ:
The speed of the current is
miles/min
The speed of the swimmer is
miles/min
Step-by-step explanation:
Let's assume
speed of the current is x miles /min
speed of the swimmer is y miles/min
Swimming downstream a swimmer can cover o.5 mile in 10 minutes
so, we get equation as
it takes the swimmer 30 minutes to swim back up
so, we get equation as
So, we get system of equations as
we can add both equations
and we get
So,
The speed of the current is
miles/min
The speed of the swimmer is
miles/min
Ответ:
let me try this first and then I will help you is it ok