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galina1969 [7]
3 years ago
10

Combine like terms:2y+8-6y+15

Mathematics
2 answers:
never [62]3 years ago
5 0
2y+8-6y+15
2y-6y+15+8
-4y+23
or 23-4y
givi [52]3 years ago
5 0

Answer:

-4y + 23.

Step-by-step explanation:

2y + 8 - 6y + 15

Bring like terms together:-

= 2y - 6y + 8 + 15

= -4y + 23.

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The mean age of 11 women in an office is 31 years old.
BlackZzzverrR [31]

Answer: 30.2

Explanation:

The mean is calculated by taking the sum of the values and dividing by the count.

For instance, for the 6 women, with the mean being 31, we can see that the ages summed to 186:

186

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=

31

And we can do the same for the men:

116

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=

29

And now we can combine the sum and count of the men and women to find the mean for the office:

186

+

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=

302

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30.2

Step-by-step explanation:

3 0
2 years ago
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5 0
3 years ago
A ferryboat makes four trips to an island each day.The ferry can hold 88 people.If the ferry is full on each trip,how many passe
olga_2 [115]

Multiplication was invented to reduce the work involved in repeated addition.

... 88 + 88 + 88 + 88 = 4×88 = 352

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Some questions must be answered before we can give a definite answer.

1. If the same person rides twice, are they counted twice?

2. Are passengers on the return trips (<em>from</em> the island) counted?

3. If return trip passengers are counted, is the ferry full on those trips?

4. Does every passenger to the island return the same day?

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4 0
3 years ago
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finlep [7]

Answer:

You have written 26 pages in total.

Step-by-step explanation:

I always enjoyed adding fractions. Something about it is so... <em>simple.</em>

<u>The problem is basically asking us to add 20 1/2 and 5 1/2 together.</u>

I would first suggest adding both halves together, to make 1.

That way, we're left with 20 + 5 + 1. That seem easier, doesn't it?

Then we would add 20, 5 and 1 together, to get 26 whole pages.

And that, to an extent, is how I did it.

Hope this helps! :D

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3 years ago
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choli [55]
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