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This module introduces distance, rate, and time.

If you travel 30 miles per hour for 4 hours, how far do you go? A little common sense will tell you that the answer is 120 miles.

This relationship is captured in the following equation:

d = r t size 12{d= ital "rt"} {} where...

  • d size 12{d} {} is distance traveled (sometimes the letter x is used instead, for position)
  • r size 12{r} {} is the rate, or speed (sometimes the letter v is used, for velocity)
  • t size 12{t} {} is the time

This is presented here because it forms the basis for many common simultaneous equations problems.

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Source:  OpenStax, Advanced algebra ii: conceptual explanations. OpenStax CNX. May 04, 2010 Download for free at http://cnx.org/content/col10624/1.15
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