Algebra I: Other common types
 This is a free lesson from our course in Algebra I

 This lesson deals with other word problem formats, such as time-distance problems, and explains them with the help of several solved examples. Typically, in time-distance problems, you need to use the idea of rate or speed. Speed is simply distance over time, i.e.                    speed = distance / time. Conversely, distance can be calculated multiplying speed and time. For example, if a passanger traveled for 4 hrs at 30 miles per hour, then the total distance covered will be 120 miles. (More text below video...)
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(Continued from above) "Distance-Time" word problems, involve something travelling at some fixed and steady ("uniform") pace ("rate" or "speed"), or else moving at some average speed. Whenever you read a problem that involves "how fast", "how far", or "for how long", you should think of the distance equation, d= s*t, where d stands for distance, s stands for the (constant or average) rate of speed, and t stands for time.
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