Answer and explanation:
<h2>h</h2>
<em>Subtract h + j + 2k = 16 by 4h + 4j + 2k = 5</em>
<em> </em> h + j + 2k = 16
-(4h + 4j + 2k = 5)
-3h - 3j = 11 <em>Then add 3j to both sides to get -3h alone</em>
-3h = 11 + 3j <em>Now divide both sides by -3 to get h</em>
h =
= ![-\frac{11}{3} - j](https://tex.z-dn.net/?f=-%5Cfrac%7B11%7D%7B3%7D%20-%20j)
<h2>j</h2>
<em>Plug in h and k to h + j + 2k = 16 </em>--->
+ j + 2(1) = 16
<em>Then add any like terms together</em>
+ 2j = 16
<em>Add
on both sides</em> 2j =
+ 16
<em>Divide both sides by 2</em> ![\frac{2j}{2} = \frac{\frac{5}{3}}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B2j%7D%7B2%7D%20%3D%20%5Cfrac%7B%5Cfrac%7B5%7D%7B3%7D%7D%7B2%7D)
<em>You can divide a fraction by a fraction, so you do kcf</em> j =
·
= ![\frac{10}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B10%7D%7B3%7D)
<h2>k</h2>
<em>Multiply h + j + 2k = 16 by 2</em> ---> 2h + 2j + 4k = 32
<em>Then subtract 2h + 2j + 4k = 32 by 2h + 2j + k = 31</em>
<em> </em>2h + 2j + 4k = 32
-(2h + 2j + k = 31)
3k = 1 <em>Divide both sides by 3 to get k</em>
k = 1
The cordinates are, The third one.
Plz give Brainlist If right.
They use 3 units of yellow paint for each batch of orange paint
Answer:
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Step-by-step explanation:
Answer:
Half life = 4.7 days
Step-by-step explanation:
Formula to get the final amount of the substance after the time 't',
![N_t=N_0e^{-kt}](https://tex.z-dn.net/?f=N_t%3DN_0e%5E%7B-kt%7D)
Here,
= Final amount of the substance
= Initial amount
k = decay constant
t = Duration or time
Now by substituting the values in the formula,
![N_t=N_0e^{-0.1473t}](https://tex.z-dn.net/?f=N_t%3DN_0e%5E%7B-0.1473t%7D)
If
[For half life]
![\frac{1}{2}(N_0)=N_0e^{-0.1473t}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%28N_0%29%3DN_0e%5E%7B-0.1473t%7D)
![\frac{1}{2}=e^{-0.1473t}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%3De%5E%7B-0.1473t%7D)
![2=e^{0.1473t}](https://tex.z-dn.net/?f=2%3De%5E%7B0.1473t%7D)
ln(2) = ![\text{ln}(e^{0.1473t})](https://tex.z-dn.net/?f=%5Ctext%7Bln%7D%28e%5E%7B0.1473t%7D%29)
0.69315 = 0.1473t
t = 4.71 days
t ≈ 4.7 days
Therefore, half life of the substance is 4.7 days.