Question 421525
{{{24*.25 = 6}}} dollars
{{{12*.25 = 3}}} dollars
There can't be 12 quarters, since the 75 cents
left over isn't evenly divided by 10
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Suppose there are 11 quarters
{{{ 11*.25 = 2.75 }}}
{{{3.75 - 2.75 = 1}}} dollar left
{{{1/.1 = 10}}} dimes
That makes 21 coins- not enough
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Suppose ther are 9 quarters
{{{ 9*.25 = 2.25 }}}
{{{3.75 - 2.25 = 1.5}}} dollars
{{{1.5/.1 = 15}}} dimes
{{{9 + 15 = 24}}}
So, there are 9 quarters and 15 dimes