In this lesson, you'll learn how to solve distance problems using the formula: rate times time equals distance. To illustrate, we'll solve a problem about two cyclists who start at the same corner and ride in opposite directions. One cyclist rides twice as fast as the other. In 3 hours, they are 81 miles apart. By setting up variables and using a chart, we'll find the rate of each cyclist, which is 9 mph and 18 mph. This method can be applied to other distance problems as well.
Solves this word problem using rt=d formula: Two cyclists start at the same corner and ride in opposite directions. One cyclist rides twice as fast as the other. In 3 hours, they are 81 miles apart. Find the rate of each cyclist.
Answer: 9 mph and 18 mph
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