Hmwk096-7-6 - 27. A cyclist rode the first 20-mile portion...

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Math 096 Homework NAME____________________________ Cotter Section 7.6 : # 1, 5, 9, 11, 13, 19, 21, 23, 27, 29, 31, 33, 45, 53, 57 Solve the proportion. 5. 3 2 3 2 1 = + + x x x = ______________ Solve each problem using a proportion or rational equation. 9. The ratio of the weight of an object on Earth to the weight of the same object on Pluto is 100 to 3. If an elephant weighs 4100 pounds on Earth, find the elephant’s weight on Pluto. 13. Find the unknown length in the following pair of similar triangles. y = _________________ 21. Smith Engineering found that an experienced surveyor surveys a roadbed in 4 hours. An apprentice surveyor needs 5 hours to survey the same stretch of road. If the two work together, find how long it takes them to complete the job. 34 16 30 y 10 18.75
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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.

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Hmwk096-7-6 - 27. A cyclist rode the first 20-mile portion...

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