Homework Help: math

Posted by Katie on Tuesday, August 30, 2011 at 11:21pm.

A fisherman had to be at an appointment at 10:30. He went fishing at 7:00 and was 20 miles from the boat dock. If the fisherman's boat goes 80 miles per hour,what time will he reach the dock if he left at 9:30 from his current position?

math - PsyDAG, Wednesday, August 31, 2011 at 2:00pm
20 miles is 1/4 of the 80mph, so it will take him 15 minutes to reach the dock.

20/x = 80/1

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