According to the U.S. Census Bureau, about 63% of Americans are adults (18 and over). Use the U.S. population estimate of 308 mi
2 answers:
Answer: 194,000,000
Step-by-step explanation:
Given : According to the U.S. Census Bureau, about 63% of Americans are adults (18 and over).
We can rewrite 63% as 0.63 [ ∵ we divide 100 to convert a percent into decimal]
The estimated population of U.S in 2010= 308 million
We know that 1 million = 1,000,000
⇒The estimated population of U.S in 2010= 308,000,000
Now, the number of American adults in 2010 will be :-
[Roundedto the nearest hundred thousand]
hence, the approximate number of American adults in 2010= 194,000,000
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Answer:
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Step-by-step explanation:
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Answer:
Time of murder = 10:39 am
Step-by-step explanation:
Let the equation of exponential function representing the final temperature of the body after time 't' is,
f(t) =
Here, a = Initial temperature
n = Constant for the change in temperature
t = Duration
At 11:30 am temperature of the body was 91.8°F.
91.8 = --------(1)
Time to reach the body to the morgue = 12:30 pm
Duration to reach = 12:30 p.m. - 11:30 a.m.
= 1 hour
Therefore, equation will be,
84.4 =
eⁿ =
ln(eⁿ) = ln(0.9194)
n = -0.08403
From equation (1),
91.8 =
0.08403t = 0.07146
t = 0.85 hours
t ≈ 51 minutes
Therefore, murder was done 51 minutes before the detectives arrival.
Time of murder = 11:30 - 00:51
= 10:90 - 00:51
= 10:39 am