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The car is driven 50,000 miles. Its five tires (one is the spare)are rotated regularly and often. How many miles will any one tire have travelled on road by end of trip?
The boat goes upstream 30 miles and downstream 44 miles in ten hours. Next day it goes upstream 40 miles and downstream 55 miles in 13 hours. Find average speed of boat and stream?
You drive after the friend maintaining the speed of 70mph. If neither of you modify the speed, how many miles will travel before overtake him?
Swimming in the river against current, she swan .25 km in same time it took Ann to swim .75 km with current. Determine speed of current and time it took ann to swim.
Find initial value problem which models account balance S(t) gathered at any time for first 5 years? Determine solution to initial value problem.
Fernando's rate on side roads is 9 mi/h faster than the rate on freeway. Write the equation to represent the problem, and then determine Fernando's rate on side roads.
During rush hour, adriana can drive thirty miles using side roads in same time that it takes to travel 15 miles on Freeway. If Adriana'a rate on side roads is 6 mi/hr faster than the rate on freeway
When he has gone halfway he discovers he has averaged 25 mph. At what speed should he travel rest of way to make the overall average speed for trip 40 mph?
One train leaves Los Angeles at 15mph heading for New York. Leaves from Los Angeles at same time as train and flies back and forth between two trains until they collide, how far will bird traveled?
Hisako ran first leg at 12 km/h and last two legs at 16 km/h. The whole race took her fifty min. How long was every leg? How long was complete course?
As boat goes over falls, she thinks that five minutes passed as it was turned around. How fast boat moved throught water? How fast was water flowing?
First boat travels two miles per hour faster than second boat. Determine average speed of every boat if they are six miles apart after two hours?
On the 5 hr trip thomas drove part of time at 30mph and rest 55 mph. If he traveled the distance of 250 miles, how much time he spent driving at 55mph
Kelley's boat goes 12mph. Determine rate of cureent of river if she can go 6mi upstream in same amount of time she can go 10mi downstream.
The cargo plane flew to maintenance facility and back it took 1 hour less time to get there than it did to get back.
Second rider's horse travels at 18 miles per hour. At what time will second Pony Express rider catch up to first Pony Express rider.
Flying with wind the plane flew 1800 mi. in 3 hours. Against wind, plane needed 5 hours to fly same distance. Determine rate of plane in calm air.
The cyclist travels 20 miles in same amount of time as it takes the hiker to walk 6 miles. Rate of cyclist is 7 mph faster than rate of hiker. Determine rate of cyclist and rate of hiker.
If width were increased by 3 m while length remained same, new rectangle would have the area of 30 m square. Determine length and width of original rectangle.
Write the function that provides length of fencing needed if length of side parellel to barn is x. Determine dimensions of garden using minimum amount of fence.
Ellen rode at the speed of 12 mph and Kate rode at the speed of 9 mph. Ellen got to library 15 minutes before Kate. How long it took Ellen to get to library and what time Ellen got to the library.
If blending plant is available for three hours and refining plant is available for two hours, how many tons of each kind of fuel must be manufactured so that plants are completely used?
Average speed on way to airport was 100mph, and average speed returning was 150mph. Determine distance between two airports if total flying time was 5 h.
Working alone, loader A would take two days longer than loader B working alone to remove all dirt. How long for A to do job entirely by itself?
Find how long it will take rocket to reach ground. Determine interval on which height of rocket is greater than 240 ft.