This is a free lesson from our course in Algebra I
This lesson deals with other word problem formats, such as timedistance problems, and explains them with the help
of several solved examples. Typically, in timedistance 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...)
(Continued from above) "DistanceTime" 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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