document.write( "Question 175177: Totally confused on this word problem:\r
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document.write( "The number of people infected after t days is P=200 +5t - t^2. Find the number of days until the number of people infected is 176. \r
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document.write( "Can someone PLEASE help? I don't even know where to begin? \n" );
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Algebra.Com's Answer #130248 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The number of people infected after t days is P=200 +5t - t^2. Find the number of days until the number of people infected is 176. \n" ); document.write( "--------------------------------- \n" ); document.write( "200 +5t - t^2 = 176 \n" ); document.write( "t^2 - 5t - 200 + 176 = 0\r \n" ); document.write( "\n" ); document.write( "t^2 -5t - 24 = 0\r \n" ); document.write( "\n" ); document.write( "Factor: \n" ); document.write( "(t-8)(t+3) = 0\r \n" ); document.write( "\n" ); document.write( "t = 8 (# of days till 176 people are infected) \n" ); document.write( "================================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |