<PRE><B>Question 1095284</B>
A cashier has 25 bills consisting of twice as many ones as tens, 
two fewer fives than ones, and the rest twenties. 
If the total value is $140, write a system of equations to model the situation. (do not solve)
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&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;It is very stupid way/instruction to solve this problem using a system of equations.


&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;It can be solved using &amp;nbsp;ONE &amp;nbsp;SINGLE &amp;nbsp;equation in &amp;nbsp;ONE &amp;nbsp;SINGLE &amp;nbsp;unknown.



&lt;pre&gt;
Let x be the number of ten-dollar bills.


Then the number of one-dollar bills is 2x; the number of five-dollar bills is (2x-2)

and the twenty-dollar bills are the rest  25-x - 2x - (2x-2) = 27-5x.


Having it, we write the total money equation


    10x + 1*(2x) + 5*(2x-2) + 25*(27-5x) = 140  dollars.


The next step is to simplify and solve it for x, and then restore all needed values.
&lt;/pre&gt;

It is how this problem &amp;nbsp;SHOULD &amp;nbsp;BE &amp;nbsp;SOLVED &amp;nbsp;and is &amp;nbsp;EXPECTED &amp;nbsp;to &amp;nbsp;be &amp;nbsp;SOLVED.



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