document.write( "Question 1043493: i have 20 couns coins. X of them are 2 rand coins and the rest are 5 rand coins. An expression in terms of x for the number of 5 rand coin i have is \n" ); document.write( "
Algebra.Com's Answer #658628 by josgarithmetic(39630)\"\" \"About 
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The question and description gives no indication of the count of the money; but just count of the coins. The problem is using uppercase X for how many two-rand coins and lower case x for how many five-rand coins, but a better designed problem should or at least COULD direct to use different letters as variables to avoid possible confusion between these two.\r
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\n" ); document.write( "\n" ); document.write( "\"X%2Bx=20\"
\n" ); document.write( "\"highlight%28x=20-X%29\"
\n" ); document.write( "and
\n" ); document.write( "\"highlight%28X=20-x%29\"\r
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\n" ); document.write( "I read the problem description again. It is written wrongly. Either x is how many of the two-rand coins, or x is how many of the five-rand coins. The second sentence says, X is how many of the two-rand coins. The third sentence being the question, asks for an expression \"in terms of x\" for how many five-rand coins. Now we must question, what is x to stand for? x is not 20; x is not X. We have NO MEANING FOR x.\r
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\n" ); document.write( "\n" ); document.write( "Do not capitalize a variable when it starts as the first \"word\" of a sentence written in English. Being the first word of a sentence IS NOT A JUSTIFICATION to capitalize it. \r
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\n" ); document.write( "\n" ); document.write( "You most likely have this as your exercise:
\n" ); document.write( "I have 20 coins, and x of them are two-rand; and the rest are five-rand coins. What is an expression in terms of x for the number of five-rand coins?\r
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\n" ); document.write( "\n" ); document.write( "Let y be how many of the five-rand coins.
\n" ); document.write( "\"x%2By=20\"
\n" ); document.write( "\"y=highlight%2820-x%29\"
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