Question 1202342
<pre>
Micky and Yarberry saved nickels and dimes. They had a total of 34 coins whose value was $2.70. How many of each kind did they have?

Let number of nickels be N
Then number of dimes = 34 - N
We then get: .05N + .1(34 - N) = 2.7
              .05N + 3.4 - .1N = 2.7
                    .05N - .1N = 2.7 - 3.4
                        - .05N = - .7
      Number of nickels, or {{{highlight_green(matrix(1,7, N, "=", (- .7)/(- .05), "=", 70/5, "=", highlight(14)))}}}

      <font color = red><font size  = 4 ><b>Number of dimes:</font></font></b> 34 - 14 =<font color = red><font size = 4><b> 20</font></font></b></pre>