Step by Step Solution. Least Common Multiple is : 120. Calculate Least Common Multiple for : 3, 8 and 10. Factorize of the above numbers : 3 = 3. 8 = 23 10 = 2 • 5. Build a prime factors table. ...
Answer:
the answer is -2.5
Step-by-step explanation:
Noelia has 216 cards after buying part of the set with her friends.
<h3>What is addition?</h3>
Combining items and counting them as a single, large group is done through addition.
Given that, Noelia has 144 role-playing cards.
Now, she bought 72 cards more, therefore, the number of cards Noelia has is:
144 + 72
= 216
Hence, Noelia has 216 cards after buying part of the set with her friends.
Learn more about the addition:
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I suppose you have to find the four numbers. If
![x](https://tex.z-dn.net/?f=x)
is the smallest of the four, then the next three numbers are
![x+2](https://tex.z-dn.net/?f=x%2B2)
,
![x+4](https://tex.z-dn.net/?f=x%2B4)
, and
![x+6](https://tex.z-dn.net/?f=x%2B6)
. The mean is 15, so
![\dfrac{x+(x+2)+(x+4)+(x+6)}4=\dfrac{4x+12}4=15](https://tex.z-dn.net/?f=%5Cdfrac%7Bx%2B%28x%2B2%29%2B%28x%2B4%29%2B%28x%2B6%29%7D4%3D%5Cdfrac%7B4x%2B12%7D4%3D15)
![\implies x+3=15](https://tex.z-dn.net/?f=%5Cimplies%20x%2B3%3D15)
![\implies x=12](https://tex.z-dn.net/?f=%5Cimplies%20x%3D12)
So the four numbers are 12, 14, 16, and 18.