Answer:
x=100
Step-by-step explanation:
(2x+8)+(71-x)=180
2x+8+71-x=180
x+80=180
x=180-80
x=100
Answer:
Sarita’s solution is correct. She made an error in her verification.
Step-by-step explanation:
answer on edgenuity
Take all three trial result averages and add them up
Then take that number and divide by three because there was three numbers added.
That number is the average of the three trials
First multiply x - 8 by 5:

Now you have to leave the linear term (5x) in one side and the constant terms (-40, 26, -29) in the other:

Divide -15 by 5 and you will get the value of x

The value of x = -3
Answer:
P1 = P2 - ma*t
Step-by-step explanation:
ma= P2-P1/t
we multiply by t both sides of the equation
ma*t = (P2 - P1)*t/t
ma*t = P2 - P1
we sum by P1 both sides of the equation:
P1 +ma*t = P2 - P1 +P1
We ave:
P1 + ma*t = P2
we subtract by ma*t both sides of the equation:
P1 + ma*t -ma*t = P2 - ma*t
finally we have:
P1 = P2 - ma*t