SOLUTION: Totally confused on this word problem:
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.
Can
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Question 175177: Totally confused on this word problem:
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.
Can someone PLEASE help? I don't even know where to begin?
Answer by stanbon(75887) (Show Source): 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.
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200 +5t - t^2 = 176
t^2 - 5t - 200 + 176 = 0
t^2 -5t - 24 = 0
Factor:
(t-8)(t+3) = 0
t = 8 (# of days till 176 people are infected)
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Cheers,
Stan H.
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