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Direct Variation
Inverse Variation
Work Problems
Working with Radical Expressions
Rationalizing the Denominator
Solving Rational Expressions
  INVERSE VARIATION
Let’s look at a real-life problem now involving inverse variation.

The force (F) needed to loosen a bolt with a wrench varies inversely with the length of the handle of the wrench. If a force of 180 pounds is needed to loosen a bolt using a wrench with a handle 10 inches long, how much force must be exerted when using a wrench with a 16 inch handle?

Click on the Solution button to see the answer.
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