document.write( "Question 1124639: If Ahmed has 16 dimes and nickels in his pocket, and they have a combined value of 125 cents, how many of each coin does he have?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #740970 by ikleyn(52780)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "5N + 10*(16-N) = 125 cents ( \"Money\" equation ) ( N = # of nickels )\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "============> divide by 5 both sides =================>\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "N + 2*(16-N) = 25\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "N + 32 - 2N = 25\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "N - 2N = 25 - 32\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "-N = -7 =====> N = 7.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Answer. 7 nickels and 16-7 = 9 dimes.\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "On coin problems, see the lessons\r \n" ); document.write( "\n" ); document.write( " - Coin problems\r \n" ); document.write( "\n" ); document.write( " - More Coin problems\r \n" ); document.write( "\n" ); document.write( " - Solving coin problems without using equations\r \n" ); document.write( "\n" ); document.write( " - Kevin and Randy Muise have a jar containing coins\r \n" ); document.write( "\n" ); document.write( " - Typical coin problems from the archive\r \n" ); document.write( "\n" ); document.write( " - Three methods for solving standard (typical) coin word problems\r \n" ); document.write( "\n" ); document.write( " - More complicated coin problems\r \n" ); document.write( "\n" ); document.write( " - Solving coin problems mentally by grouping without using equations\r \n" ); document.write( "\n" ); document.write( " - Santa Claus helps solving coin problem\r \n" ); document.write( "\n" ); document.write( " - OVERVIEW of lessons on coin word problems\r \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You will find there the lessons for all levels - from introductory to advanced, \n" ); document.write( "and for all methods used - from one equation to two equations and even without equations. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Read them and become an expert in solution of coin problems.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r \n" ); document.write( "\n" ); document.write( " - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Coin problems\".\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I \n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |