document.write( "Question 962470: Ron has 16 coins with a total value of $2.20. The coins are nickels and quarters. How many of each coin does he have? \n" ); document.write( "
Algebra.Com's Answer #588059 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Ron has 16 coins with a total value of $2.20. The coins are nickels and quarters. How many of each coin does he have? \n" ); document.write( "------------- \n" ); document.write( "Quantity Eq:: n + q = 16 coins \n" ); document.write( "Value Eq:::: 5n+25q = 220 cents \n" ); document.write( "------------------ \n" ); document.write( "Modify for elimination:: \n" ); document.write( "n + q = 16 \n" ); document.write( "n + 5q = 44 \n" ); document.write( "---- \n" ); document.write( "Subtract and solve for \"q\":: \n" ); document.write( "4q = 28 \n" ); document.write( "q = 7 (# of quarters) \n" ); document.write( "---- \n" ); document.write( "Solve for \"n\":: \n" ); document.write( "n = 16-7 = 9 (# of nickels) \n" ); document.write( "---------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "------------ \n" ); document.write( " |