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Anuta_ua [19.1K]
3 years ago
10

What is the answer to... 5m+8n-2(3m-n)?

Mathematics
2 answers:
Paladinen [302]3 years ago
5 0
-m +10 is the correct answer
Korolek [52]3 years ago
4 0

Answer:

-m + 10n

Step-by-step explanation:

5m+8n-6m+2n = -m+10n

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At your job, you make $8 per hour, and are promised to get a $0.03 per month. Your friend makes $8.15, and is promised a $0.02 r
Rudik [331]

Answer:

3883.2 dollars.

Step-by-step explanation:

We must analyze the situation of each one,

The first tells us to earn 8 dollars an hour, he is promised to receive 0.03 dollars per month, which means that he would already have that increase that month. Therefore, you would have 8.03 per hour of earnings.

The second, on the other hand, although he earns $ 8.15 per hour, the increase is promised every month, that is, it is NO month with the increase of 0.02.

Now assuming they work 8 hours a day and 30 days a month, it would be a total of 8 * 30 = 240 hours.

Now multiplying your hourly income, we will get what each person earns per month.

8.03 * 240 = 1927.2 dollars

8.15 * 240 = 1956 dollars

Which means that both will earn a total of:

1927.2 + 1956 = 3883.2 dollars.

4 0
3 years ago
If a train goes 20 km east then it turns and travels 43 km north then it goes 20 km west then travels south in an unknown number
Alexandra [31]

Answer:

Answer is 43 km.

Step-by-step explanation:

Let's draw diagram to solve the problem.

4 0
4 years ago
Mr. Gold had 4 times more cars than motorcycles in his garage. After he bought 4 more cars and sold 4 motorcycles, there were 8
fenix001 [56]

Answer: 36 cars and 9 motorcycles


Step-by-step explanation:

  1. It's given that he has x motorcycles to 4x cars
  2. After he bought the cars and sold the motorcycles, he had 4x+4 cars to x-4 motorcycles
  3. Since after this selling/buying, he has 8 times more cars than motorcycles, you can write the equation 4x+4=8(x-4)
  4. Once you solve you get 36 cars and 9 motorcycles
6 0
4 years ago
Thank you so much for the help!!
Aleks [24]

The independent variable in these equations based on how they are written is x, since y is a function of x here so y depends on the value of x, while x can be changed freely.

So, for each of these questions, plug in the given value of the independent variable for x.

Independent variable equal to 10: 0.1*10 + 5 = 6

Independent variable equal to 50: 0.1*50 + 5 = 10

Independent variable equal to 120: 0.1*120 + 5 = 17

3 0
2 years ago
What is the measure of each exterior angle of a pentagon
Mademuasel [1]
<h3>Answer:   72 degrees</h3>

n = 5 is the number of sides in a pentagon

360/n = 360/5 = 72 is the measure of each exterior angle of the regular pentagon. It has to be a regular polygon or else you could have some exterior angle measures that are different. A regular polygon has all sides equal to one another, and it also has all angles equal to one another.

7 0
3 years ago
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