document.write( "Question 61587: Merlin has 20 coins in quarters and dimes. The total value of the coins is $3.95. How many coins of each kind does he have? \n" ); document.write( "
Algebra.Com's Answer #42389 by joyofmath(189)\"\" \"About 
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Merlin has 20 coins in quarters and dimes. The total value of the coins is $3.95. How many coins of each kind does he have?\r
\n" ); document.write( "\n" ); document.write( "Merlin has some quarters, Q, and some dimes, D. \"Q%2BD=20\" because he has 20 coins.\r
\n" ); document.write( "\n" ); document.write( "The total values is 395 so \"25Q%2B10D=395\".
\n" ); document.write( "Since \"Q%2BD=20\" \"D=20-Q\".
\n" ); document.write( "So, \"25Q%2B10%2820-Q%29+=+395\" or \"25Q%2B200-10Q+=+395\"
\n" ); document.write( "Or, \"15Q%2B200=395\"
\n" ); document.write( "Or, \"15Q=195\".
\n" ); document.write( "So, Q=13 and D must = 7 since there are 20 coins in total.\r
\n" ); document.write( "\n" ); document.write( "Verify: \"13%2A25%2B7%2A10+=+325%2B70+=+395\".
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