Amotorboat takes 40 minutes to travel 20 miles downstream. the return trip takes 60 minutes. what is the speed of the current?

The current is 5 mph

Step-by-step explanation:

The current helps the boat going down stream and hinders going up so it adds to the speed downstream and subtracts going up.

speed downstream is 20miles/40minutes =1 mi per 2 min. Or 30 mph

Speed upstream is  

20 miles/ 60 minutes = 1 mile per 3minutes or 20 mph

So if the speed of the boat is the same (s) then downstream the boat travels  

S+c =30 mph and s-c =20mph upstream if c is tge current speed

So s=30-c and s=20+c  

So. 30-C=20+c

      10=2C

       5=C

The current is 5 mph

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)

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