Answer: 95/144
Explanation:
There are 12 light bulbs.
There are 5 defective bulbs.
There are 7 not defective bulbs.
P (at least one defective) = first one defective or second one defective or both defective.
P (at least one defective) = (5/12)(7/12) + (7/12)(5/12) + (5/12)(5/12) = 95/144
Using proportions, it is found that the actual cost of each pineapple is of $2.12
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount.
In this problem, considering that the waste factor is of 15%, the<em> </em>total price<em> </em>should be of:
P = 0.85 x $14.95 = $12.7075.
For a case of 6 pineapples, hence the price of each is given by:
Pp = $12.7075/6 = $2.12.
More can be learned about proportions at brainly.com/question/24372153
