document.write( "Question 266704: okay i just don't know how to put this as an equation?
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document.write( "Rosa has $3.10 in nickles and dimes. She has 10 fewer nickels than she has dimes. How many dimes and nickels does she have? \n" );
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Algebra.Com's Answer #195934 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Rosa has $3.10 in nickles and dimes. She has 10 fewer nickels than she has dimes. How many dimes and nickels does she have? \n" ); document.write( "---- \n" ); document.write( "Quantity Equation: n = d-10 \n" ); document.write( "Value Equation: 10d + 5n = 310 cents \n" ); document.write( "---------------------------------------------- \n" ); document.write( "Rearrange and modify the equations: \n" ); document.write( "10d - 10n = 100 \n" ); document.write( "10d + 5n = 310 \n" ); document.write( "------------------------- \n" ); document.write( "Subtract 1st from 2nd and solve for \"n\": \n" ); document.write( "15n = 210 \n" ); document.write( "n = 14 (# of nickels) \n" ); document.write( "--- \n" ); document.write( "Since n = d-10, d = 24 (# of dimes) \n" ); document.write( "======================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "======================================== \n" ); document.write( " |