Answer:
A is $490 and B is 3990
Step-by-step explanation:
The way I solved this is with my last brain cells, you welcome.
We can just plug in the values of x = 2 and y = 4 into the expression 4x+y to get 4*2 + 4 = 8 + 4 = 12.
for 2y-x = 2*4 - 2 = 8 - 2 = 6
Answer:
x ≥ 10
Step-by-step explanation:
Note:- (Let's take temperature as "x")
At least sign "≥"
I hope it helps.
Answer:
Step-by-step explanation:
What variable are you solving for?
Answer:
parallel means that the line has the same slope as
![y = \frac{1}{2} x + 9](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20x%20%2B%209)
Slope point formula :
y - y1 = m (x - x1)
m represents the slope.
x and y represents the point in the form (x, y).
Since the slopes are the same we can substitute the slope into the formula:
![y - y1 = \frac{1}{2} (x - x1)](https://tex.z-dn.net/?f=y%20-%20y1%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%28x%20-%20x1%29)
then we can substitute our point (2, - 5)
![y - ( - 5) = \frac{1}{2} (x - 2)](https://tex.z-dn.net/?f=y%20-%20%28%20-%205%29%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%28x%20-%202%29)
Final answer:
Change the - 5 to positive.
![y + 5 = \frac{1}{2} (x - 2)](https://tex.z-dn.net/?f=y%20%2B%205%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%28x%20-%202%29)
Leave y by it's own and subtract 5 to get rid of it. Do this both sides to make it equal.
![y + 5 - 5 = \frac{1}{2} (x - 2) - 5](https://tex.z-dn.net/?f=y%20%20%2B%205%20-%205%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%28x%20-%202%29%20%20-%205)
Get rid of the brackets by multiplying:
![y =( \frac{1}{2} \times x) - ( \frac{1}{2} \times 2) - 5](https://tex.z-dn.net/?f=y%20%3D%28%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Ctimes%20x%29%20%20-%20%28%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Ctimes%202%29%20-%205)
simplify:
![y = \frac{1}{2} x - 1 - 5](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20x%20-%201%20-%205)
Answer:
![y = \frac{1}{2} x - 6](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20x%20-%206)