SOLUTION: the speed of the lazy river current is 5 mph. If a boat travels 20 miles downstream in the same time that it takes to travel 10 miles upstream find the speed of the boat in still

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Question 324043: the speed of the lazy river current is 5 mph. If a boat travels 20 miles downstream in the same time that it takes to travel 10 miles upstream find the speed of the boat in still water.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let B be the boat speed.
%28B%2B5%29T=20
%28B-5%29T=10
.
.
.
2%28B-5%29=B%2B5
2B-10=B%2B5
B=15mph