<PRE><B>Question 190626</B>
1. Bob has 60 coins consisting of quarters and dimes. The coins combined value is
$9.45. Find out how many of each quarters and dimes Bob has.
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Q + D = 60 (60 coins)
25Q + 10D = 945 (total value)
Q = 60 - D (from 1st eqn)
Sub into 2nd eqn
25*(60-D) + 10D = 945
1500 - 25D + 10D = 945
-15D = - 555
D = 37
Q = 23
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