Chapter 4.5, Problem 10P

Jenny uses the following method to find 28% of 60,000 mentally:

Twenty-five percent is $\frac{1}{4},$ and $\frac{1}{4}$ of 60 is 15, so 25% of 60,000 is 15,000. One percent of 60,000 is 600, and that times 3 is 1800. So the answer is $15,000+1,800,$ which is 16,800.

Write a string of equations that calculates 28% of 60,000 and that incorporates Jenny’s ideas. Write your equations in the following form:

   $\begin{array}{l}28\%•60,000=someexpression\hfill \\ \begin{array}{l}=someexpression\\ =:\end{array}\hfill \\ \begin{array}{l}=16,800\\ \end{array}\hfill \\ \hfill \end{array}$