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November 20, 2014

November 20, 2014

Posted by **Carson** on Friday, February 19, 2010 at 10:46am.

a. Write an expression that gives the total cost to test x animals.

b. You can find the 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, and 1,000 animals.

d. As the number of tested animals increases, what happens to the average cost to test? Would the average cost ever fall below #3.00? If so, identify that value. If not explain.

e. How many animals should be tested for the average cost to be $5.00 per animal?

I have a good start, but want to make sure I am using the correct formulas, can you help?

- Algebra -
**Damon**, Friday, February 19, 2010 at 10:52amc = 2500 + 3 x

av cost = (2500+3x)/x

note for part d that can be written:

av cost = 2500/x + 3

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