Answer:
x = 1.8
Step-by-step explanation:
We have the equation -3x + 18 = 7x. First we do your step 1, and get: 18 = 10x. When doing your step 2, we divide both sides by 10 to isolate x alone. 18/10 = 1.8. X = 1.8
When you have a negative exponent, you move it to the other side of the fraction to make the exponent positive.
For example:
or ![\frac{x^{-2}}{1}=\frac{1}{x^2}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E%7B-2%7D%7D%7B1%7D%3D%5Cfrac%7B1%7D%7Bx%5E2%7D)
or y²
So:
![5^{-2}=\frac{1}{5^2}=\frac{1}{25}](https://tex.z-dn.net/?f=5%5E%7B-2%7D%3D%5Cfrac%7B1%7D%7B5%5E2%7D%3D%5Cfrac%7B1%7D%7B25%7D)
Your answer is B
Find the area of each figure.
Answer:
A) y = -2x
B) y = x - 3
Step-by-step explanation:
A) you need to have a negative 'x' coefficient and no y-intercept
B) you need to have a positive 'x' coefficient and a negative y-intercept
Answer:men=152 women=76 children=38
Step-by-step explanation:
- men+women+children=266
- men=4*children
- women=2*childrens
- so let say x represent the numebers of children the equatin becomes: 4x+2x+x=266
- solve for x =38 so the numbers of children is 38
- men=4*38=152
- women=2*38=76