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Joint Variation and Proportion problems

Joint Variation and Proportion example question

If z varies jointly as x and y, and z = 3 when x = 4 and y = 6, find z when x = 20 and y = 9.

 

Solution to this Joint Variation and Proportion practice problem is provided in the video below!



 


3 Comments

  1. Very nice tutorial and good drill. My son understands now how to distinguish many different types of variation!

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