document.write( "Question 371197: On a table there are 30 coins. Some are quarters and some are dimes. Their value is $4.05. How many of each coin are there? \n" ); document.write( "
Algebra.Com's Answer #264449 by mananth(16946)\"\" \"About 
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On a table there are 30 coins. Some are quarters and some are dimes. Their value is $4.05. How many of each coin are there?\r
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\n" ); document.write( "let there be x quarters
\n" ); document.write( "dimes will be balance = 30-x
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\n" ); document.write( "Value = $4.05 = 405 cents
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\n" ); document.write( "25x+10(30-x)=405
\n" ); document.write( "25x+300-10x=405
\n" ); document.write( "15x=405-300
\n" ); document.write( "15x=105
\n" ); document.write( "/15
\n" ); document.write( "15x/15 = 105/15
\n" ); document.write( "x=7 quarters
\n" ); document.write( "dimes = 23
\n" ); document.write( "...
\n" ); document.write( "m.ananth@hotmail.ca
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