1.Three computers can print out a task in 10 min, 15 min, and 30 min, respectively. How long would it take to complete the task with all three computers working? min 2.An engineer traveled 110 mi by car and then an additional 750 mi by plane. The rate of the plane was three times the rate of the car. The total trip took 8 h. Find the rate of the car.
1.Three computers can print out a task in 10 min, 15 min, and 30 min, respectively. How long would it take to complete the task with all three computers working? min 2.An engineer traveled 110 mi by car and then an additional 750 mi by plane. The rate of the plane was three times the rate of the car. The total trip took 8 h. Find the rate of the car.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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1.Three computers can print out a task in 10 min, 15 min, and 30 min, respectively. How long would it take to complete the task with all three computers working?
min
2.An engineer traveled 110 mi by car and then an additional 750 mi by plane. The rate of the plane was three times the rate of the car. The total trip took 8 h. Find the rate of the car.
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