document.write( "Question 1126810: A newspaper carrier has $12.00 in change. He has two more quarters than dimes, but three times as many nickels as dimes. How many coins of each type does he have. \n" ); document.write( "
Algebra.Com's Answer #743127 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "Nickels + dimes + quarters = 1200 cents total\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "5*(3D) + 10D + (D + 2)*25 = 1200 <<<---=== It is the money equation; \"D\" stands for dimes.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "15D + 10D + 25D + 50 = 1200\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "50D = 1200 - 50 = 1150\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "D = 1150/50 = 23.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Answer. 23 dimes; 3*23 = 69 nickels and 23+2 = 25 quarters.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Check. 23*10 + 5*69 + 25*25 = 1200 cents = $12.00. ! Correct !\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( " |