Lucy has $8.15. She loses $3.00. About how much does she have now
1 answer:
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Answer:
Step-by-step explanation:
When the interest compounds continuously, our formula is
If we start with 10000 and are looking for how long, t, it takes to double, we are looking for how long it will take for our account to have 2 times 10000. That's 20000. Therefore, our equation is
Divide both sides by 10000 to get
Take the natural log of both sides to "undo" that e:
Again, since ln and e undo each other what we have now is
ln(2) = .11t and
so
t = 6.3 years
REVISED ANSWER.
In the picture, I have drawn on the example given. the RC and PD are the same because They are across from each other perfectly. So the answer is still PD=400m but if there can be two answers then I would have to say another possiblity would be 200m for the diameter of the pond. The wording of this problem is tricky and the picture can throw you off a bit but I did my best to answer properly here.
So if you could mark brainliest that would be awesome.
