document.write( "Question 326508: In a typing class, the average number N of words per minute after t weeks of lessons was found to be N=157 over 1+5.3e^(-.12xt)\r
\n" ); document.write( "\n" ); document.write( "Find the time necessary to type.\r
\n" ); document.write( "\n" ); document.write( "A.) 50 wpm
\n" ); document.write( "B.) 75 wpm\r
\n" ); document.write( "\n" ); document.write( "Would you plug the two given numbers in where t is? I assumed you would but by the wording they want you to plug it into N? I am confused. And if it is N how would you solve?
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Algebra.Com's Answer #233764 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Re-read your setup.
\n" ); document.write( "N - words per minute (wpm)
\n" ); document.write( "t - weeks
\n" ); document.write( "Here's how to solve.
\n" ); document.write( "\"N%28t%29=157%2F%281%2B5.3e%5E%28-0.12t%29%29\"
\n" ); document.write( "\"50=157%2F%281%2B5.3e%5E%28-0.12t%29%29\"
\n" ); document.write( "\"1%2B5.3e%5E%28-.12t%29=157%2F50=3.14\"
\n" ); document.write( "\"5.3e%5E%28-0.12t%29=2.14\"
\n" ); document.write( "\"e%5E%28-0.12t%29=0.403776\"
\n" ); document.write( "\"-0.12t=ln%280.403776%29\"
\n" ); document.write( "\"-0.12t=-0.9069\"
\n" ); document.write( "\"t=7.56\"
\n" ); document.write( "A little over seven and a half weeks.
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\n" ); document.write( "Now follow the same steps and solve for t when N=75.\r
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