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Twinkies on the shelf of a convenience store lose their fresh tastiness over time. We say that the taste quality is 1 when th

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Answer #1

Q(t) = 0.85t

When Q(t) = 1/2,

(1/2) = 0.85t

Taking ln both sides

ln(1/2) = t*ln(0.85) = t*(-0.162)

-0.693 = t*(-0.162)

t = -0.693/-0.162 = 4.278

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