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river is feet above its flood stage. The water is receding at a rate of 3 inches per hour. Write a mathematical model that shows the number of feet above flood stage after hours. Assuming the water continually recedes at this rate, when will the river be 1 foot above its flood stage?
Solve for Y:
aX + 3 = Y
You are driving on a Canadian freeway town that is 500 kilometers from your home. After 30 minutes, you pass a freeway exit that you know is 50 kilometers from your home. Assuming that you continue at the same constant speed, how long does the entire trip take?
A truck driver travels at an average speed of 55 miles per hour. On a 10-mile trip to pick up freight, the truck's average speed is miles per hour. What is the average speed for the entire trip?