The temperature is 50 degrees Fahrenheit. The temperature will decrease by 4 degrees F. each hour. Let h be the number of hours.
2 answers:
Answer:
Option B is correct
Step-by-step explanation:
Here, h be the number of hours.
As per the statement:
The temperature is 50 degrees Fahrenheit.
⇒Initial temperature = 50 degrees Fahrenheit
It is also given that:
The temperature will decrease by 4 degrees F each hour.
1 hour temperature will be = -4 degree F
then;
In h hour temperature = -4h degrees F
We have to find the the temperature be below 32 degrees F.
Total Temperature be below 32 degrees F means:
where, h represents the number of hours.
Therefore, the the temperature below 32 degrees F will be
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Answer:
5 years
Step-by-step explanation:
Step one:
Given Information
Principal= $34,000
rate = 4.8%
SImple interest = $8,160
Required
The time T of the investment
Step two:
the expression for simple interest is
substitute
cross multiply we have
divide both sides by 163200
Answer:
Adults=8
Childrens=2
Seniors=2
Step-by-step explanation:
Children $4
Adults $6
Seniors $5
There are an equal number of seniors and children.
The entire group spent a total of $66.
If 11 adults attended, the total amount will be $66 and the number of senior and childrens will be the same, 0. But this is not possible because the statement says that childrens and seniors are part of the group.
If we add the charges of childrens and seniors is equal to $9.
Assuming that the group has 2 childrens and 2 seniors the add is equal to:
Now we substract the result from the total amount:
48 is multiple of 6, this means we have in the group 8 adults, 2 childrens and 2 seniors.
has CDF
where
and so
Differentiate the CDF with respect to
i.e.