Question 841018
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Hi,
27 coins.... CENTS make sense.  Let s represent the amount of Quarters:
 25x + 10(27-x) = 450¢ 
     15x = 180
       x = 12, number of Quarters.  There are 15 Dimes   {{{27-12)}}}
CHECKING our answer***
 25*12 + 10*15 =  300¢  + 150¢  = 450¢    0r $4.50
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