document.write( "Question 810277: A jar of 13 coins has $1.25 in it. The coins are nickels and quarters. How many of each do I have? \n" ); document.write( "
Algebra.Com's Answer #488028 by erica65404(394)![]() ![]() You can put this solution on YOUR website! nickels=x quarters=y \n" ); document.write( "x+y=13 coins \n" ); document.write( "now keep in mind that quaters are .25 and nickels are .05. \n" ); document.write( ".05x+.25y=1.25 \n" ); document.write( "solve the first equation for y then plug into the above equation to find the amount of nickels. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "we now know we have 10 nickels. \n" ); document.write( "plug 10 into the first equation to find quarters \n" ); document.write( " \n" ); document.write( "we have 3 quarters and 10 nickels. \n" ); document.write( " |