in 3 months Us energy giant Enron went from a company with assets of 62bn to a company with depts of 18bn What is the difference
1 answer:
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Answer:
The correct answer is "1668". A further solution is provided below.
Step-by-step explanation:
According to the question,
Estimated proportion,
Margin of error,
E = 0.02
Level of confidence,
= 90%
= 0.90
Critical value,
Now,
⇒
or,
In the old aquarium, 3 tablespoons of salt were used for 20 gallons. That's a conversion ratio of
That is, for every gallon of water in the aquarium, there was 0.15 tbsp of salt. So a 50 gallon aquarium, Ill should add
to maintain the salinity.