Suppose that the amount of algae in a pond doubles every 4 hours. If the pond initially contains 90 pounds of algae, how much algae will be in the pond after 12 hours?
If a pond initially contains 90 pounds of algae, the amount of algae in a pond doubles every 4 hours, in 12 hours there will be 720 pounds of algae. 12 / 4 = 3. (1) 90 x 2 = 180. (2) 180 x 2 = 360. (3) 360 x 2 = 720.
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taben29|Points 577|
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Asked 2/19/2012 3:41:35 PM
Updated 4/21/2014 6:10:07 PM
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