Solve.
-The speed of a stream is 4 mph. If a boat travels 60 miles downstream in the same time that it takes to travel 30 miles upstream, what is the speed of the boat in still water?
A) 12 mph
B) 15 mph
C) 14 mph
D) 8 mph
Correct Answer:
Verified
Q82: Solve.
-Jill is 10.5 kilometers away from Joe.
Q83: Solve.
-4x + 4y + z = 15
Q84: Solve.
-x + y + z = 7
Q85: Solve.
-An airplane travels 800 miles against the
Q86: Solve.
-A cruise boat travels 96 miles downstream
Q88: Solve.
-5x + 2y + z = -11
Q89: Solve.
-x + y + z = -5
Q90: Solve.
-Candy and Delvis are riding bicycles in
Q91: Solve.
-A plane flies 420 miles with the
Q92: Solve.
-7x + 7y + z = 1
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