Answer:
13a_29
Step-by-step explanation:
group like terms
2(n-5)=3(n+7)
2n - 10= 3n +21
-10 - 21 = 3n- 2n
n=-31
Answer:
n=-2.5
Step-by-step explanation:
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The volume of the pyramid is changed by a factor of 125
<u>Solution:</u>
Given that, each side of a pyramid is multiplied by a factor of 5.
We have to find how will the volume of the pyramid changes?
Now, we know that, volume of a pyramid 
Now, each dimension is multiplied by factor of 5.
Then, volume of new pyramid 

Volume of new pyramid = 125
volume of old pyramid.
Hence, the volume of the pyramid is changed by a factor of 125.
4Step-by-step explanation:
bhtrrerh