Wiki User
∙ 11y agoIt would be 20 MPH.
Wiki User
∙ 11y agoThe speed of a boat that travels 10 miles in 30 minutes is 1/3 miles per minute.Formulas=d/ts=10/30s=1/3 mile per minute
The speed of the boat is 26.67 miles per hour. This is calculated by dividing the distance traveled (20 miles) by the time taken (45 minutes converted to hours, which is 0.75 hours).
The average speed is(4 x the number of nautical miles the boat traveled in that time) knots.
5580+1/3
Time = Distance/Speed = 10 miles/20 miles per hour = 0.5 hours or 30 minutes.
25 miles.
5 miles
11 mph
hm
25 miles
The rate of crossing depends on the speed the boat is traveling, not on the distance it has to travel. 25 miles could probably be crossed in approximately forty-five minutes or less.
Let boat speed = X and current speed = Y Downstream speed = boat speed plus current speed = X + Y Upstream speed = boat speed minus current speed = X -Y Downstream speed = 2 miles divided by 3 minutes = 2/3 miles per minute Upstream speed = 2 miles divided by 15 minutes = 2/15 miles per minute X + Y = 2/3 X - Y = 2/15 add equations 2X = 2/3 + 2/15 = 10/15 + 2/15 = 12/15 = 4/5 divide by 2 X = 4/10 = 2/5 use second equation and find Y as X -Y = 2/15 2/5 - Y = 2/15 6/15 - Y = 2/15 Y = 4/15 = current speed = 0.266 miles per minute