The rate of change is 48 inches per 12 years
This can be written out as 48/12 in/year
This can be reduced to 4 in/year
Let r = usual driving rate
let t = usual driving time
We need to figure out t
The distance she covers in her usual time at her usual rate is r*t
The distance she covers in her new time at her new rate is:
(1+t)*((2/3)r)
Set this equal to each other and solve for t.
rt = (2/3)r + (2/3)rt
(1/3)rt = (2/3)r
(1/3)t = (2/3)
t = 2
So her usual time is 2 hours. (There's probably a faster way to do this)
Alr that would be =-109 for your answer
Answer:
Step-by-step explanation:
4:22 4:12
0.5 = 0.500
0.485<0.500
hope that helps!