document.write( "Question 1041383: a person's IQ is given by the formula IQ= (MA/CA)*100 where CA is chronological age. If 80 <= IQ <= 140 for a group of 12 years old children, find the range of their mental ages. \n" ); document.write( "
Algebra.Com's Answer #656376 by stanbon(75887)\"\" \"About 
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a person's IQ is given by the formula IQ= (MA/CA)*100 where CA is chronological age. If 80 <= IQ <= 140 for a group of 12 years old children, find the range of their mental ages.
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\n" ); document.write( "80 <= (MA/12)*100 <= 140
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\n" ); document.write( "Multiply by 12 along the line to get:
\n" ); document.write( "960 <= 100*MA <= 1680
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\n" ); document.write( "Divide by 100 along the line to get the answer::
\n" ); document.write( "9.6 <= MA <= 16.8
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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