Afishing boat travels along the east coast of the united states and encounters the gulf stream current. it travels 23 miles north with the current in 1 hr . it travels 39 miles south against the current in 3 hr . find the speed of the current and the speed of the boat in still water.

Speed of the boat 18 mph

Speed of the current 5 mph

Step-by-step explanation:

If it travels 39 miles south against the current in 3 hours then the combination speed is 39/3 = 13 miles/h.

Let x be the speed of the boat and y be the speed of the current

With the current: total speed = x + y = 23 mph

Against the current: total speed = x - y = 13 mph

We can add up 2 equations:

x + y + x - y = 23 + 13 = 36

2x = 36

x = 18 mph

y = 23 - 18 = 5 mph

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

mnkjn

step-by-step explanation: