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Author Question: When a quantity of sugar is placed in a container of water, the sugar dissolves at a rate ... (Read 93 times)

iveyjurea

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Question 1

A population of bacteria grows continuously at a rate of 15% of its current population. If there are 10,000 bacteria present initially, how many (to the nearest 100) will there be after four hours?
◦ 19,100
◦ 16,500
◦ 15,300
◦ 17,500
◦ 18,200

Question 2

When a quantity of sugar is placed in a container of water, the sugar dissolves at a rate proportional to the amount  of sugar remaining undissolved. Suppose that 30 g of sugar is placed in 1 L of water and that 5 minutes later the concentration of sugar dissolved in the water is 25 g/L.
Find a formula for A(t), the amount of sugar that is dissolved  t  minutes after the sugar was placed in the water.
◦ A(t) = 30e-(t ln 6) g
◦ A(t) = 30  g
◦ A(t) = 30e-(t ln 6)/5 g
◦ A(t) = 30  g
◦ A(t) = 30  g


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Marked as best answer by iveyjurea on May 26, 2021

cici

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iveyjurea

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Reply 2 on: May 26, 2021
Gracias!


raili21

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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