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Unformatted text preview: 27. A cyclist rode the first 20-mile portion of his workout at a constant speed. For the 16-mile cooldown portion of his workout, he reduced his speed by 2 miles per hour. Each portion of the workout took the same time. Find the cyclists speed during the first portion and find his speed during the cooldown portion. 45. To mix weed killer with water correctly, it is necessary to mix 8 teaspoons of weed killer with 2 gallons of water. Find how many gallons of water are needed to mix with the entire box if it contains 36 teaspoons of weed killer. 57. A pilot can fly an MD-11 aircraft 2160 miles with the wind in the same time as she can fly 1920 miles against the wind. If the speed of the wind is 30 mph, find the speed of the plane in still air....
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This note was uploaded on 01/16/2012 for the course MATH 096 taught by Professor Jimcotter during the Spring '11 term at Truckee Meadows Community College.
- Spring '11