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jonny [76]
3 years ago
5

The state of New Jersey has a population of about 8.9 million and its area is about 8700 mi². What is the population density of

New Jersey? Round your answer to the nearest whole number
1023

102

890

100
Mathematics
2 answers:
Basile [38]3 years ago
7 0
The answer is 1023. I really hope this helps.
tatiyna3 years ago
5 0

The population density is obtained by dividing the population by the area.

Here the population is given as 8.9 millions

1 miilion = 10,00,000

so 8.9 millions = 8.9 ×10,00,000= 8,900,000

The area of the State of New Jersey = 8700 miles².

Hence population density = \frac{8900000}{8700} = 1022.98

Rounding it off we get

Population density = 1023 people per square mile.

Option A) is the right answer

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Answer:

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3 years ago
 Sandra sells necklaces at a school craft fair. She uses the equation P= 7.5n - (2.25n + 15) to determine her total profit at th
gregori [183]
The way you find profit is to subtract the revenue and the cost
Profit = Revenue - Cost
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So the equation given is
P = 7.5n - (2.25n+15)
and its in the form
P = R - C
where...
R = 7.5n is the revenue equation
C = 2.25n+15 is the cost equation

Focus on the revenue equation
R = 7.5n
which is the same as 
R = 7.50*n

This tells us that Sandra pulls in a total of 7.50*n dollars where n is some positive whole number. It represents the number of necklaces sold. For example, if she sold n = 10 necklaces, then
R = 7.50*n
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meaning that Sandra has made $750 in revenue

As you can see above, the revenue is computed by multiplying the price per necklace ($7.50) by the number of necklaces sold (n) to get R = 7.50*n

So that's why the answer is $7.50

Note: The 2.25 is part of the cost equation. This is known as the variable cost. It is the cost to make one necklace ignoring the fixed cost (eg: rent). The variable cost often doesn't stay the same, but algebra textbooks often simplify this aspect. 
8 0
3 years ago
The area of the triangle is 24 square feet. what is the length of the base?
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Answer:

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8 0
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spayn [35]
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4 0
3 years ago
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