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Nuetrik [128]
3 years ago
6

Are composite numbers closed under multiplication

Mathematics
1 answer:
MrMuchimi3 years ago
3 0

Answer:

Remember that for a subset of a ring to be an ideal it must be closed under addition and under taking multiples by elements of the ring, and in this case the set of all composite integers is not closed under addition.

Step-by-step explanation:

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(y + x) ÷ 2 + x; x=1, y=1
ycow [4]
<span>(1 + 1) ÷ 2 + 1 <span>answer is 2.

Here are the steps.

1. Reduce 1 + 1 to 2 ( 2 </span>÷ 2 + 1).

2. Reduce 2 ÷ 2 to 1 ( 1 + 1).

3. So finally the answer is 2.</span>
6 0
3 years ago
Juice is made up by diluting concentrate with water in the ratio 1:5. If 200ml of concentrate is used ,how much juice will be ma
natta225 [31]

Answer: 1,200 ml

Step-by-step explanation:

The ratio is 1 : 5.

If 200 ml of concentrate is used, the water used will be:

1     :    5

200 :   x

x = 1,000 ml of water

The amount of juice would be:

= water + concentrate

= 1,000 + 200

= 1,200 ml

5 0
3 years ago
Y-1=4y-2/3<br> y=_____<br> solve
Vikki [24]
Y - 1  =  4y - 2/3.      Move the ys over to one side,  +4y crosses over to become -4y,
                                  and -1 crosses over the right side to become +1.
y -4y  = -2/3  + 1
-3y  =    1 - 2/3
-3y =  1/3          Divide both sides by -3.

-3y/-3  = (1/3) / -3.
y  =  1/3  * -1/3
y =  - 1/9

7 0
3 years ago
Read 2 more answers
What is the perimeter of the triangle
nevsk [136]

Answer:

There’s no image, but to find the perimeter of the triangle just add up the totals of each side.

Step-by-step explanation:

3 0
3 years ago
Write the linear equation that goes through the points (2, 20) and (-3, 8). *
Lyrx [107]

Answer:

2.4x+15.2

Step-by-step explanation:

5 0
3 years ago
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