8=12-8x
-4=8x
-4÷8=8x÷8
-0.5=x
Step-by-step explanation:
y=2x
interchanging the role of x andy
x=2y
y=x/2
:.inverse of y=2xis y=x/2
-5a-4a+b<span>Simplifying
-5a + -4a + b
Combine like terms: -5a + -4a = -9a
-9a + b</span>
Answer:
Mean time and 13
Step-by-step explanation:
Given that
here is a five people and they spend the work in 7,10,13,20,15 hours respectively
Therefore here the concept i.e. used is average time or the meantime
And, this can be determined below:
= Sum of observations ÷ number of observations
= (7 + 10 + 13 + 20 + 15) ÷ 5
= 13