Answer:
168 = x
Step-by-step explanation:
mean = u=132
standard deviation =sigma = 20
z score =z=1.8
The formula is
z = (x-u)/ sigma
Substituting what we know
1.8 = (x-132)/20
Multiply by 20
1.8*20 = (x-132)/20 *20
36 = x-132
Add 132 to each side
36+132 = x-132+132
168 = x
Answer:
x = -10
Step-by-step explanation
5x+7(-3x-14)=162
First, 5x -21x - 98 = 162
Then, combine like-terms, -26x - 98 = 162
After that, add 98 to 162, and you'll end up with 260.
Finally, you'll wanna divide the -26x to the 162.
You'll end up with x = -10
Answer:
-9/3 or -3
Step-by-step explanation:
Lets start with the y's, substitute:
-6-3=-9
Then the x's, substitute:
5-2=3
Substitute back into the fraction:
-9/3 or
-3
Answer:
One solution; x = -
Step-by-step explanation:
12x + 6 = 5x
12x - 5x = -6
7x = -6
x = -