document.write( "Question 1161560: The following information matrices shows how many of each vehicle type sold
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\n" ); document.write( "\n" ); document.write( "C. Mark sold 4 trucks\r
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Algebra.Com's Answer #785163 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "A mnemonic device for remembering which subscripts are which, is to think of\r\n" );
document.write( "the word \"arc\" which reminds you of\r\n" );
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document.write( "Ar,c or Arow,column\r\n" );
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document.write( "If you need a mnemonic device for remembering which is a row and which is a\r\n" );
document.write( "column, think of columns on a mansion or building.  They go up and down,\r\n" );
document.write( "vertically, whereas rows go across, left to right, horizontally.\r\n" );
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document.write( "Edwin
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