document.write( "Question 443931: i have a jar containing 60 coins all of which are either quarters or nickels. the total value of the coins in the jar is $9.20. How many of each type of coin do i have? \n" ); document.write( "
Algebra.Com's Answer #306132 by chriswen(106)![]() ![]() ![]() You can put this solution on YOUR website! Let x be the number of quarters. \n" ); document.write( "Let 60-x be the number of nickels. \n" ); document.write( "... \n" ); document.write( "25x+5(60-x)=920\r \n" ); document.write( "\n" ); document.write( "The 25 and 5 is for the value of the coins (25 cents and 5 cents)\r \n" ); document.write( "\n" ); document.write( "25x+300-5x=920 \n" ); document.write( "20x=920-300 \n" ); document.write( "20x=620 \n" ); document.write( "x=31 \n" ); document.write( "60-x=29 \n" ); document.write( "... \n" ); document.write( "Therefore, there are 31 quarters and 29 nickels in the jar. \n" ); document.write( " |