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On January 4, 1970 the price of a widget was $39.46. On January 4, 1979 the price of a widget was $95.57. Find the average rate of change in the price of a widget from 1970 to 1979. Round to the nearest cent.


The average rate of change is \(\displaystyle \frac{95.57-39.46}{1979-1970}= 6.23\) dollars per year.

Download \(\LaTeX\)

\begin{question}On January 4, 1970 the price of a widget was \$39.46.  On January 4, 1979 the price of a widget was \$95.57.  Find the average rate of change in the price of a widget from 1970 to 1979. Round to the nearest cent.
    \soln{9cm}{The average rate of change is $\frac{95.57-39.46}{1979-1970}= 6.23$ dollars per year.}

\end{question}

Download Question and Solution Environment\(\LaTeX\)
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\begin{document}\begin{question}(10pts) The question goes here!
    \soln{9cm}{The solution goes here.}

\end{question}\end{document}
HTML for Canvas
<p> <p>On January 4, 1970 the price of a widget was &#36;39.46.  On January 4, 1979 the price of a widget was &#36;95.57.  Find the average rate of change in the price of a widget from 1970 to 1979. Round to the nearest cent.</p> </p>
HTML for Canvas
<p> <p>The average rate of change is  <img class="equation_image" title=" \displaystyle \frac{95.57-39.46}{1979-1970}= 6.23 " src="/equation_images/%20%5Cdisplaystyle%20%5Cfrac%7B95.57-39.46%7D%7B1979-1970%7D%3D%206.23%20" alt="LaTeX:  \displaystyle \frac{95.57-39.46}{1979-1970}= 6.23 " data-equation-content=" \displaystyle \frac{95.57-39.46}{1979-1970}= 6.23 " />  dollars per year.</p> </p>