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Question Completion Status: 1 2 3 4 5 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 QUESTION 21 A bacterial culture grows exponentiall at a rate of 6.4% per hour. If the culture present total is at 250,000 cultures. What was the initial amount 10 hours ago. Write the equation for the amount of cultures using the initial amount TT TT Paragraph Arial 3 (12pt) T Q T T2 fx Mashups V > 0 CG HTHLESS Path:D Words: 0 QUESTION 22 As it dries, the compressive strength of a certain concrete grows to a maximum value of 78 Mpa. If the rate of growth is 10.5% per month, in how many months will the concrete reach 60 Mpa? Write the equation for the strenght for this model TTTT Paragraph Arial 3 (12pti * DOO TT. Click Save and submit to save and submit a Sud Acers to see all answers Save An Ang

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Answer 1

Solution @ Given Bacterial growth Rate & 6-4.4. pertour. Present Culture 250,000 Let &- Initial amount 10 hours ago Initial amount = x gowth 6.4%. per hour - 0.064 per hour for t houn Then, Equetson of amount of culture will be givenes, x(10064)t t=10 hour after initial of Culture Present = 250000 Culture 10 (1) - 10 250000 x (1.064)' x (1.064)' 250000 (1.0640 x 134438.52 2 134439 culture will be R Hence, Initial population before 10 hous 134439 AM equation for Amount of culture at time t t le (t) 134439* (1.06) Am