<PRE><B>Question 988424</B>
&lt;br&gt;
For one thing, I would definitely recommend using cents instead of dollars to write your second equation.  Then you have&lt;br&gt;
d+q=40
10d+25q=490&lt;br&gt;
Multiply the first equation by 10 and then compare the two equations, giving you the number of quarters, q:&lt;br&gt;
10d+10q=400
10d+25q=490&lt;br&gt;
15q=90
q = 6&lt;br&gt;
Then d+q=40 gives you d=34.&lt;br&gt;
ANSWER: 6 quarters and 34 dimes&lt;br&gt;
CHECK: 6(25)+34(10) = 150+340 = 490&lt;br&gt;
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