Mathematics Paper-Number of Bacteria


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Number of Bacteria

Instructions:Select the correct answer from each drop-down menu.

Gary is testing a river water sample in his lab. Initially, there are 64 bacteria in the river water sample. The number of bacteria after 3 hours can be calculated using the expression shown below.

 

Use the given expression to complete the statements.
3
64(1.12)

 

The quantity that represents the initial number of bacteria is 64 3 1.12 .

The quantity that represents the rate at which the number of bacteria is increasing is A. 0.12     B. 1.12    C. 3 12 , which means the growth rate percentage for the bacteria is A. 0.12   B. 112   C.1.12    D. 12 3 %.

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