5i square root 2
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Each year, the interest is 60 000 x 6/100 = 3,600
in 8 years the amount of interests is 8 x 3600 = 28,800
he'll pay $88,800
Answer:
too long, sorry got my own work to do :|
Step-by-step explanation:
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)
You subtract 3 with eleven and you're left with -2x>8 and then I think you divide them but I'm not 100% sure
