SOLUTION: A boat traveled downstream a distance of 85 mi and then came right back. If the speed of the current was 8 mph and the total trip took 5 hours and 40 minutes, find the average spee

Algebra.Com
Question 1066481: A boat traveled downstream a distance of 85 mi and then came right back. If the speed of the current was 8 mph and the total trip took 5 hours and 40 minutes, find the average speed of the boat relative to the water.
Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
         SPEED        TIME              DISTANCE

DOWN        r+8                    85

UP          r-8                    85

Total



Solve this for r.
RELATED QUESTIONS

A boat traveled downstream a distance of 36 mi and then came right back. If the speed of... (answered by josmiceli)
A boat traveled downstream a distance of 52 mi and then came right back. If the speed of... (answered by ewatrrr)
A boat traveled downstream a distance of 152 mi and then came right back. If the speed of (answered by excellentsolutionas)
A boat traveled downstream a distance of 65 mi and then came right back. If the speed of... (answered by josmiceli)
A boat traveled downstream a distance of 50 mi and then came right back. If the speed of... (answered by josgarithmetic,Boreal,josmiceli,MathTherapy)
A boat traveled downstream a distance of 36 mi and then came right back. If the speed of... (answered by ikleyn,josgarithmetic)
A boat traveled downstream a distance of 90 mi and then came right back. If the... (answered by josgarithmetic,ikleyn)
A boat traveled downstream a distance of 128mi and then came right back. If the speed of (answered by lwsshak3)
A boat traveled downstream a distance of 95 miles and then came right back. If the speed (answered by ankor@dixie-net.com)