document.write( "Question 575229: Mrs.Boyd has a desk full of quarters and nickels. If she has a total of 16 coins with a total face value of 3.00$, how many of the coins were nickels? \n" ); document.write( "
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Mrs.Boyd has a desk full of quarters and nickels. If she has a total of 16 coins with a total face value of 3.00$, how many of the coins were nickels?
\n" ); document.write( "sol:
\n" ); document.write( "Then 0.25x is the dollar amount of one quarter (1x) and 0.05 is the dollar amount of one nickel (1y).
\n" ); document.write( "x + y = 16 (the number of quarters and nickels if you count them as coins)
\n" ); document.write( "0.25x + 0.05y = $3 (the amount of money if you add the value of all the quarters and nickels.
\n" ); document.write( "solving this for x & y you get the no of quaters and nickels respectively.
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