Answer: 17 years
Step-by-step explanation:
Exponential equation for compund amount( compunded continuously):
, where P= Principal value , r= rate of interest , t= time.
Given: A= 2P
r =4%= 0.04
To find : t
Substitute all values in the formula , we get

Taking natural log on both sides

hence, it will take 17 years (approx).
Step-by-step explanation:
a)
well, it is kind of written already :
228 miles and 6 gallons.
so, miles/gallon = 228/6 = 38 miles/gallon.
b)
it is not mentioned, but I guess we have to assume that he got the same miles/gallon ratio on this trip as well.
so, again
38 miles/gallon
and he used 9 gallons.
so, he drove 38×9 = 342 miles
Answer:
Well, Your best choice is y=1/4x+ 1
Sorry, I don't have a explanation. Hope This Helps!!~