Posted by Micah on Monday, January 21, 2008 at 9:23am.
Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are $2,500 for setup costs and $3.00 to administer each test.
a. Write an expression that gives the total cost to test x animals.
b. You can find the average cost per animal by dividing total costs by number of animals. Write the expression that gives the average cost per animal.
c. Find the average cost per animal for 10 animals. 100 animals. 1,000 animals
d. As the number of animals tested increases, what happens to the average cost to test the animals? Would the average cost ever fall below $3.00? If so, identify a value that supports your answer. If not, explain how you know.
e. How many animals should be tested for the average cost to be $5.00 per animal?

Algebra  drwls, Monday, January 21, 2008 at 9:27am
The question in imcomplete. The cost y of testing n alligators is
y = 2500 + 3n.

Algebra  Anonymous, Saturday, October 31, 2009 at 1:33am
The cost, in millions of dollars, to remove x % of pollution in a lake modeled by
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