document.write( "Question 358419: Laura has 20 coins consisting of quarters and dimes. If she has a total of $3.05, how many dimes does she have?
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Algebra.Com's Answer #255785 by mananth(16946) You can put this solution on YOUR website! 20 coins \n" ); document.write( "dimes & quarters \n" ); document.write( "value 305 cents \n" ); document.write( "let dimes be x \n" ); document.write( "quarters will be 20-x \n" ); document.write( "... \n" ); document.write( "25(20-x)+10x=305 \n" ); document.write( "500-25x+10x=305 \n" ); document.write( "-15x=-195 \n" ); document.write( "/-15 \n" ); document.write( "x=13 \n" ); document.write( "dimes 13 \n" ); document.write( "quarters 7 coins \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |