Problema Solution
c. Find the average cost per animal for 15 animals, 1500 animals, and 15,000 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?
Answer provided by our tutors
c) 10: (2500 + 30)/15 = : (2500 + 300)/1500 = $28, 1000: (2500 + 3000)/51000 = $5.50
d) It decreases, and no. We can write: (2500 + 3x)/x < 3 ---> 2500 + 3x < 3x, which is clearly false.
e) (2500 + 3x)/x = 5 --> 5x = 2500 + 3x --> 2x = 2500, x = 1250.