While driving from chicago, brent had a visibility problem due to the fog. after 1 1/2 hours, the fog lifted and he was able to increase his speed by 44 mph, driving another 2 and 1/2 hours. if the entire trip was 206 miles, how fast was he traveling in the fog? brents rate of speed in the fog was . two snails are 391 centimeters apart. they crawl toward each other at rates that differ by 1 cm/min. after 23 minutes, they meet. how fast is each snail crawling? the slower snail is moving at /min. the faster snail is moving at /min. two crews are laying blacktop on a road. they start at the same time at opposite ends of a 8-mile road and work toward one another. one crew lays blacktop at an average rate of 0.5 mile a day faster than the other crew. if the two crews meet after 3.2 days, find the rate of each crew. the rate of the faster crew is miles per day. the rate of the slower crew is miles per day.