document.write( "Question 932829: In your piggy bank, you have $6.80, which is a combination of 39 coins(quarters and dimes only).
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document.write( "Is it possible to have 39 coins of quarters and dimes only? I been puzzling myself trying to figure out how many quarters and dimes and still equal to 39 coins.please help us. \n" );
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Algebra.Com's Answer #566405 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! In your piggy bank, you have $6.80, which is a combination of 39 coins(quarters and dimes only). \n" ); document.write( " Is it possible to have 39 coins of quarters and dimes only? \n" ); document.write( "-------- \n" ); document.write( "Equations:: \n" ); document.write( "Quantity of coins: d + q = 39 coins \n" ); document.write( "Value of the coins 10d + 25q = 680 cents \n" ); document.write( "-------------------------- \n" ); document.write( "Modify:: \n" ); document.write( "10d + 10q = 10*39 \n" ); document.write( "10d + 25q = 680 \n" ); document.write( "------ \n" ); document.write( "Subtract and solve for \"q\": \n" ); document.write( "15q = 290 \n" ); document.write( "q = 19 1/3 (not a realistic number of quarters) \n" ); document.write( "---- \n" ); document.write( "Ans: It is not possible. \n" ); document.write( "--------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "-------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |