Protons and electrons are 12. For neutrons, there are 12 of them.
<span>Magnesium has an </span>atomic number<span> of 12, which means there are 12 protons.
You subtract the atomic number from the mass number in order to find neutrons.
</span>Atomic mass is 24. 24-12=12
Electrons always match the number of protons.
Answer:
13/14 is greater
Step-by-step explanation:
Find the lcm for both:
<u>9 x 7 </u> = <u>63</u>
10 x 7 70
<u>13 x 5 </u> = <u>65</u>
14 x 5 70
so therefore 13/14 is greater since it has a greater value when finding the lcm
Answer: 103/15
Step-by-step explanation:
We can simplify the right-hand side to be
.
This means we need to solve:
![\frac{1}{2}(5x-9)=\frac{38}{3}\\5x-9=\frac{76}{3}\\5x=\frac{103}{3}\\x=\boxed{\frac{103}{15}}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%285x-9%29%3D%5Cfrac%7B38%7D%7B3%7D%5C%5C5x-9%3D%5Cfrac%7B76%7D%7B3%7D%5C%5C5x%3D%5Cfrac%7B103%7D%7B3%7D%5C%5Cx%3D%5Cboxed%7B%5Cfrac%7B103%7D%7B15%7D%7D)
Answer:
y = 2/6x
Step-by-step explanation:
graph it.
use graph paper
I think D. is the right letter .