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Ainat [17]
2 years ago
6

Round 52.856 to the nearest hundreths

Mathematics
2 answers:
Scilla [17]2 years ago
7 0
Answer:
53
Explanation:
None
Aneli [31]2 years ago
4 0
The answer to this is 53.000
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Four eggs can be bought for $.10 how many eggs can be bought for $.30
slavikrds [6]

Answer:

12

Step-by-step explanation:

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3 years ago
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Jamal has been approved for $125,000 loan, 30-year mortgage with an APR of 5.3%. He made a 10% down payment and is closing on Ap
Alex17521 [72]

Answer:

Step-by-step explanation:

Loan APR is 5.535%

Loan information:

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Term in years:

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the school newspaper has a circulation of 500 and sells for $.035 a copy. the students decide to raise the price to increase the
Alik [6]

Let x be the number of times they raise the price on the newspaper. Then the new cost of the newspaper is

.35+.05x

Let y be the newspaper they sell, then the income will be

y(.35+.05x)

Now, we know that the circulation is of 500, assuming that they sold every newspaper at the original price now the number the will sell will be

y=500-20x

Plugging the value of y in the first expression we have that the income will be

\begin{gathered} f(x)=(500-20x)(.35+\text{0}.5x)=175+25x-7x-x^2 \\ =-x^2+18x+175 \end{gathered}

Then the income is given by the function

f(x)=-x^2+18x+175

To find the maximum value of this functions (thus the maximum income) we need to take the derivative of the function,

\begin{gathered} \frac{df}{dx}=\frac{d}{dx}(-x^2+18x+175) \\ =-2x+18 \end{gathered}

no we equate the derivative to zero and solve for x.

\begin{gathered} \frac{df}{dx}=0 \\ -2x+18=0 \\ -2x=-18 \\ x=\frac{-18}{-2} \\ x=9 \end{gathered}

This means that we have an extreme value of the function when x=9. Now we need to find out if this value is a maximum or a minimum. To do this we need to take the second derivative of the function, then

\begin{gathered} \frac{d^2f}{dx^2}=\frac{d}{dx}(\frac{df}{dx}) \\ =\frac{d}{dx}(-2x+18) \\ =-2 \end{gathered}

Since the second derivative is negative in the point x=9, we conclude that this value is a maximum of the function.

With this we conclude that the number of times that they should raise the price to maximize the income is 9. This means that they will raise the price of the newspaper (9)($0.05)=$0.45.

Therefore the price to maximize the income is $0.35+$0.45=$0.80.

4 0
1 year ago
What is the area of the composite figure?
d1i1m1o1n [39]
100cm2 that is the answer I got
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3 years ago
there are 84 students in the 8th grade. if they are split evenly into 6 groups how many students will be in each group
steposvetlana [31]
Answer: 14 students will be in each group

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