document.write( "Question 1034000: If a jar contains 21 coins, all of which are either nickles or dimes . And the total value is $1.75 , how many coins of each are in the jar? \n" ); document.write( "
Algebra.Com's Answer #648586 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! If a jar contains 21 coins, all of which are either nickles or dimes . And the total value is $1.75 , how many coins of each are in the jar? \n" ); document.write( "------- \n" ); document.write( "Quantity:: n + d = 21 coins \n" ); document.write( "Value:::: 5n + 10d = 175 \n" ); document.write( "---------------------- \n" ); document.write( "Modify for elimination:: \n" ); document.write( "n + d = 21 \n" ); document.write( "n + 2d = 87.5 \n" ); document.write( "------------------------ \n" ); document.write( "Subtract and solve for \"d\": \n" ); document.write( "d = 66.5 \n" ); document.write( "Note:: d must be a positive whole number. \n" ); document.write( "Please check your post. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |