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Simultaneous Equations Concepts -- Distance, Rate and Time

Module by: Kenny M. Felder. E-mail the author

Summary: 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=rtd=rt size 12{d= ital "rt"} {} where...

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