Answer:
![2.75\%](https://tex.z-dn.net/?f=2.75%5C%25)
Step-by-step explanation:
To find what percentage a certain value is of another value, simply divide the first value by the second, respectively.
We want to find want percentage that 7,562.5 is of 275,000. Therefore, we will divide 7,562.5 by 275,000 to obtain a decimal:
![\frac{7,562.5}{275,000}=0.0275](https://tex.z-dn.net/?f=%5Cfrac%7B7%2C562.5%7D%7B275%2C000%7D%3D0.0275)
To convert from a decimal to a percentage, multiply by 100:
![0.0275 \cdot 100=\boxed{2.75\%}](https://tex.z-dn.net/?f=0.0275%20%5Ccdot%20100%3D%5Cboxed%7B2.75%5C%25%7D)
(x^2)+4x-12=48
I Hope this is what you were looking for. If it isn't this just plug it in
x=6
Answer:
2 CH4(g) + 4 O2(g) --> 2 CO2 (g)+ 4 H2O(g)
Step-by-step explanation:
The number are subscripts.
Now count the number of each kind of atom on the left and right side of the equation. Note, you have 4 H on the left and as written you have only 2 on the right. So add a coefficient-- a number in front of the formula.
CH4 +O2 ----- CO2 + 2 H2O
With the added coefficient in front of water, the number of hydrogens balance but the number of oxygens do not. There are only 2 oxygens on the left and a total of 4 oxygens on the right. A coefficient of 2 in front of oxygen on the left balances the equation.
Its c hope I helped
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