Albert is conducting an enviormental survery about colony of 42 dung beetles. He believes a popultion of the dung beetle is growing exponentially at a rate of 17.3% per week. In order for his hypothesis is to be corect, how many dung beetles should there be in 6 weeks?
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+23246 After one week there should be 42 x 1.173 dung beetles.
After two weeks there should be 42 x 1.173 x 1.173 dung beetles.
After six weeks there should be 42 x 1.736 dung beetles.
The reason that you use 1.173 is: if there is no change, you would multiply by 1.000; you now need to add another 17.3% (which is 0.173); adding 1.000 and 0.173, you get 1.173.
The 1 means that you get to keep the original number; the 0.173 means that more will be added to the original number.
+23246 After one week there should be 42 x 1.173 dung beetles.
After two weeks there should be 42 x 1.173 x 1.173 dung beetles.
After six weeks there should be 42 x 1.736 dung beetles.
The reason that you use 1.173 is: if there is no change, you would multiply by 1.000; you now need to add another 17.3% (which is 0.173); adding 1.000 and 0.173, you get 1.173.
The 1 means that you get to keep the original number; the 0.173 means that more will be added to the original number.
