Answer:
242
Step-by-step explanation:
Answer:
3rd one
Step-by-step explanation:
i did it
Answer:
![w=\frac{420}{p}](https://tex.z-dn.net/?f=w%3D%5Cfrac%7B420%7D%7Bp%7D)
Step-by-step explanation:
So generally a direct proportion can be expressed as:
![k=\frac{y}{x}](https://tex.z-dn.net/?f=k%3D%5Cfrac%7By%7D%7Bx%7D)
essentially where the y/x is equal to some constant value.
Whenever you have an inverse proportion, you can generally express it as:
![k=xy](https://tex.z-dn.net/?f=k%3Dxy)
where the product of x and y is equal to some constant value.
So we can check for inverse proportion, by seeing if the xy product is constant
1 * 420 = 420
2 * 210 = 420
3 * 140 = 420
Since the xy (or technically wp, or in general the product of the independent variable and dependent variable) product is constant, this relationship can generally be expressed as: ![wp=420](https://tex.z-dn.net/?f=wp%3D420)
We can divide both sides by p, so we can isolate the dependent variable (p)
![w=\frac{420}{p}](https://tex.z-dn.net/?f=w%3D%5Cfrac%7B420%7D%7Bp%7D)
Answer:
x= -2
Step-by-step explanation:
4x + 2 = 6(-2x - 5)
Distribute
4x+2 = -12x-30
Add 12x to each side
4x+2+12x = -12x-30+12x
16x+2 = -30
Subtract 2 from each side
16x+2-2=-30-2
16x = -32
Divide by 16
16x/16x = -32/16
x = -2