document.write( "Question 978173: Learning Theory.
\n" ); document.write( "In a psychology experiment, students were given a nine-digit number to memorize. The percent P of students who remembered the number t minutes after it was read to them can be given by P= 90-3t^2/3. What percent of the students remembered the number after 1 hour? \n" ); document.write( "

Algebra.Com's Answer #599697 by KMST(5328) $\"\"$ $\"About$

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I understand the formula to be $\"P=+90-3t%5E%222%2F3%22\"$ .
\n" ); document.write( "That would mean that immediately after students were given a nine-digit number to memorize ( $\"t=0\"$ ),
\n" ); document.write( "the percentage who remembered it was $\"P=+90-3%2A0%5E%222%2F3%22=90-3%2A1=90-3=87\"$
\n" ); document.write( "At 1 hour, $\"t=60\"$ , so
\n" ); document.write( " $\"P=+90-3%2A60%5E%222%2F3%22\"$ = approximately $\"90-3%2A15.33=about90-46=44\"$ \n" ); document.write( "

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