document.write( "Question 993078: Kevin and Randy muise have a jar containing 49 coins, all of which are either quarters or nickels. The total value of coins in the jar is $6.05. How many of each type od coin do they have? \n" ); document.write( "
Algebra.Com's Answer #807736 by CubeyThePenguin(3113)![]() ![]() You can put this solution on YOUR website! q = number of quarters \n" ); document.write( "n = number of nickels\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "25q + 5n = 605 \n" ); document.write( "q + n = 49\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply the second equation by 5.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "25q + 5n = 605 \n" ); document.write( "-(5q + 5n = 245) \n" ); document.write( "---------------------- \n" ); document.write( "20q = 360 \n" ); document.write( "q = 18\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "They have 18 quarters and 31 nickels. \n" ); document.write( " |