document.write( "Question 1121017: A boy have 34 cowries consisting of nickels and dimes. If the value of the cowries is $2.20 . How many nickrl does the boy have ?
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Algebra.Com's Answer #736754 by ikleyn(52878) $\"\"$ $\"About$

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\n" ); document.write( "A boy $\"highlight%28cross%28have%29%29\"$ has 34 $\"highlight%28cross%28cowries%29%29\"$ coins consisting of nickels and dimes. If the value of the $\"highlight%28cross%28cowries%29%29\"$ coins is $2.20 .
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document.write( "Let's make first trial prediction by assuming for a minute that all 34 coins are nickels - then the total would be 5*34 = 170 cents, \r\n" );
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document.write( "making the shortage of  220 - 170 = 50 cents.\r\n" );
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document.write( "Hence, we should replace   = 10 nickels by dimes to compensate the difference  \r\n" );
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document.write( "    (diminishing the difference of 50 cents by 5 cents at any single replacement).\r\n" );
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document.write( "So, the  answer  is: the original collection has 10 dimes and 34-10 = 24 nickels.\r\n" );
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document.write( "Check.  24*5 + 10*10 = 220 cents.   ! Correct !\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is a very standard coin word problem.\r
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\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
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\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
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\n" ); document.write( "\n" ); document.write( "Read them and become an expert in solution of coin problems.\r
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\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
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Coin problems\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\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
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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\n" ); document.write( "\n" ); document.write( "With my editing of your post, you can learn English in parallel with Math, having doubled your benefits . . . \r
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