document.write( "Question 1107964: I have 93 cents and 8 coins. I have the same number of quarters as pennies. Each type of coin is used. What are the coins? \n" ); document.write( "
Algebra.Com's Answer #723007 by Boreal(15235) You can put this solution on YOUR website! pennies, nickels, dimes, and quarters \n" ); document.write( "maximum pennies=3=quarters \n" ); document.write( "That is 78 cents \n" ); document.write( "that leaves 1 dime and 1 nickel for 93 cents.\r \n" ); document.write( "\n" ); document.write( "also can do pennies=x=quarters \n" ); document.write( "(8-2x)/2= dimes and nickels \n" ); document.write( ".01x+.25x+.10(8-2x)/2+.05 (8-x)/2=0.93 \n" ); document.write( "the last two terms are .15(8-2x)/2 \n" ); document.write( "multiply everything by 2 to clear fractions \n" ); document.write( ".02x+.50x+.15(8-2x)=1.86 \n" ); document.write( ".22x+1.20=1.86 \n" ); document.write( ".22x=0.66 \n" ); document.write( "x=3 \n" ); document.write( " \n" ); document.write( " |