document.write( "Question 526392: Peggy had four times as many quarters as nickels. She had $2.10 in all. How many nickels and how many quarters did she have?\r
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document.write( "Which of the following equations could be used to solve the problem? \n" );
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Algebra.Com's Answer #348481 by stanbon(75887) ![]() You can put this solution on YOUR website! Peggy had four times as many quarters as nickels. She had $2.10 in all. How many nickels and how many quarters did she have? \n" ); document.write( "Which of the following equations could be used to solve the problem? \n" ); document.write( "--------------------- \n" ); document.write( "Quantity Equation: q = 4n \n" ); document.write( "Value Equation: 5n + 25q = 210 cents \n" ); document.write( "------------------------------------------ \n" ); document.write( "Substitute for \"q\" and solve for \"n\": \n" ); document.write( "5n + 25(4n) = 210 \n" ); document.write( "5n + 100n = 210 \n" ); document.write( "105n = 210 \n" ); document.write( "--- \n" ); document.write( "n = 2 (# of nickels) \n" ); document.write( "--- \n" ); document.write( "Solve for \"q\": \n" ); document.write( "q = 4n \n" ); document.write( "q = 4*2 = 8 (# of quarters) \n" ); document.write( "================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============ \n" ); document.write( " \n" ); document.write( " |