<span>Set up a proportion so 12/5= 30/x so cross multiply 5 times 30 is = to 12x now divide 150 (which is 30 times 5) by 12 and you get 12.5. So 12.5 is your answer
</span> y 12 - x 5
y 30 - x ?
x= 30 × 5 ÷ 12
<span>x = 12.5</span>
Answer:
y = -7x + 4
Step-by-step explanation:
Slope- intercept form (y=mx+b)
Answer:
values of j are: 2 , -1
Step-by-step explanation:
We have been given:
![\frac{j+4}{j+2}={2}-\frac{1}{j}](https://tex.z-dn.net/?f=%5Cfrac%7Bj%2B4%7D%7Bj%2B2%7D%3D%7B2%7D-%5Cfrac%7B1%7D%7Bj%7D)
We will cross multiply in the above equation we get:
![\frac{j+4}{j+2}=\frac{2j-1}{j}](https://tex.z-dn.net/?f=%5Cfrac%7Bj%2B4%7D%7Bj%2B2%7D%3D%5Cfrac%7B2j-1%7D%7Bj%7D)
![j^2+4j=2j^2+4j-j-2](https://tex.z-dn.net/?f=j%5E2%2B4j%3D2j%5E2%2B4j-j-2)
![2j^2-j^2+4j-4j-j-2](https://tex.z-dn.net/?f=2j%5E2-j%5E2%2B4j-4j-j-2)
![j^2-j-2](https://tex.z-dn.net/?f=j%5E2-j-2)
We will solve the quadratic equation by factorizing:
![j^2-2j+j-2](https://tex.z-dn.net/?f=j%5E2-2j%2Bj-2)
![j(j-2)+1(j-2)](https://tex.z-dn.net/?f=j%28j-2%29%2B1%28j-2%29)
![(j+1)(j-2)](https://tex.z-dn.net/?f=%28j%2B1%29%28j-2%29)
hence, the values of j are: 2 , -1
Umm gtg lol idk i'm just doing this for free brainly plus lol it wants me to type like twenty freakin words