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nignag [31]
3 years ago
7

Will the sum of the three even numbers be odd or even?

Mathematics
1 answer:
Anna35 [415]3 years ago
8 0

Answer:

Even.

Step-by-step explanation:

They will be even.

All even numbers, by definition,  are divisible by 2.

We can write  3  even numbers as 2m, 2n and 2p.

So the sum = 2m + 2n + 2p

= 2(m + n + p).

This proves it because the sum is a multiple of 2 and must be even.

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Reduce the fractions using the greatest common factor 7 over 12
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Answer:

7/12 cannot be reduced

Step-by-step explanation:

7 = 7

12 = 2 * 2 * 3

7 and 12 have no common factors other than 1, so the fraction 7/12 cannot be reduced. 7/12 is already written in lowest terms.

4 0
3 years ago
A room has a rectangular floor that is 15 feet by 21 feet. What is the area of the floor in square yards ? ​
Soloha48 [4]

Answer:

Hey There!

Let's solve...

Here it is a rectangular floor with length =21 cm and width =15cm

So

area = l \times w \\  = 21 \times 15 \\  = 315 {ft}^{2} \\  \\

So now We need to convert it to yards square

315ft^{2} \times  \frac{ {1yd}^{2} }{ {9ft}^{2} } \\  \\  =  \cancel{315ft^{2}}  \: ^{35}  \times  \frac{ {1yd}^{2} }{ \cancel{9 {ft}^{2} }}  \\  \\  = 35 {yd}^{2}

So how this 9 ft^2 came??

Let's know

ft \to \: yards \\  \\ 3ft = 1yd \\  \\  {3ft}^{2} =  {1yd}^{2}  \\  \\  \boxed{ {9ft}^{2} =  {1yd}^{2}}

<h2>I hope it is helpful to you...</h2><h3>Cheers!_______</h3>
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The mean would be 8 since you would have to add all of them up which would give you 64 and then divide by the amount of numbers their are which is 8 so 64/8 = 8
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D answer is 9 , 24/8 = 3
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