GEOM 3 | Lesson 4 | Making Connections


  1. Your friend, Misha, solved the problem above by first setting up the proportion:\(\dfrac{x}{20}= \dfrac{5}{15}\) and found that \(x = 6\dfrac{2}{3}\).  Your other friend, Jon, set up the proportion: \(\dfrac{5}{15}=\dfrac{x}{x+20}\) and found that \(x = 10\).  Who is correct and why?
  2. Think of another application, create a problem around it and solve it.

Check solutions here.

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