1) A tank of water has a base a circle of radius 2 meters and vertical sides. If water leaves the tank at a rate of 9 liters per minute, how fast is the water level falling in centimeters per hour? [1 liter is 1000 cubic centimeters]
2)Car A leaves the Grand Canyon at noon. It travels at 40 mph, but stops at 3 pm for an hour. Car B leaves the Grand Canyon at 2 pm and travels at 50 mph without stopping on the same route as car A. When does Car B catch up with Car A?
3)A car travels 330 miles in 6 hours. It travels at 50 mph for the first two hours and travels the last 180 miles at 60 miles per hour. It travels at constant speed for the remaining time.
(a) How long did it take to travel the first 150 miles? _____ hours
(b) Where was the car after 3 hours? ______miles from the start
The explanation is in the attachment 1) The rate of fall is y = 4.2973 cm/hr. 2) Car B catches up with car A... View the full answer