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Levart [38]
3 years ago
15

Solve. 14/n+7=10/n-4 N=5.25 N=3.5 N=31.5 N=30

Mathematics
1 answer:
Ilya [14]3 years ago
5 0

Answer:

n=31.5

Step-by-step explanation:

The given question is:

\frac{14}{n+7}=\frac{10}{n-4}

Cross multiply to get:

14(n-4)=10(n+7)

Expand the parenthesis:

14n-56=10n+70

Group similar terms:

14n-10n=70+56

Combine the like terms

4n=126

Divide both sides by 4

n=\frac{126}{4}

n=31.5

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Part 2
ahrayia [7]

Answer:

B. 236.3

Step-by-step explanation:

Population density can be found by dividing the number of people by the area of the land.

number of people / land area

The population is 20,510 people and the area is 86.8 square miles.

20,510 people / 86.8 square miles

Divide 20,510 by 86.8

236.290323 people /square mile

Round to the nearest tenth. The 9 in the hundredth place tell us to round the 2 to a 3 in the tenth place.

236.3 people/ square mile

There are 236.3 people per square mile and B is correct.

6 0
2 years ago
I need help with this plz
Ksju [112]

Answer:

The correct answer is D. 10.

Step-by-step explanation:

If Brandy earns 2 stars for every goal, and she scored 8 goals, then we need to multiply 8 by 2.

8 x 2 = 16

She looses 1/2 a star for every miss, and she missed the goal 12 times. Therefore, we need to multiply 1/2 by 12.

12 x 1/2 = 6

Therefore, Brandy lost 6 stars.

Now, we need to subtract the amount of stars Brandy earned by the amount that she lost.

16 - 6 = 10

Therefore, the correct answer is D. 10.

Hope this helps! :D

5 0
3 years ago
What is the coefficient of 14
My name is Ann [436]
The coefficient is the number . so if the problem said 16x the coefficient would be 16 . the answer is 14
5 0
3 years ago
Which is the most likely reason Ohio specializes in manufacturing transportation equipment?
My name is Ann [436]

Answer:

C

Step-by-step explanation:

Ohio's resources support manufacturing equipment.

6 0
3 years ago
Can someone give me a questions about Units​
erica [24]

Answer:

How many items can a normal-sized unit hold?

Step-by-step explanation:

5 0
2 years ago
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