You used 4.5 instead of .045
I'm having trouble with this word problem:
Assume $150 is deposited in a savings account. If the interest rate is 4.5% compounded continuously, after how many years will the investment be worth $450? (Round your answer to the nearest month.)
I start off with
after this, my teacher says i did something wrong, but i can't figure out where i did it wrong.
ok;
In 5 years, radioactivity reduces the msas of a 100-gram sample of an element to 60 grams. for this element, find the number of years it would take for the original sample to be reduces to half its original mass.
im using the equation to start.
good so far? or not?
gah, back to the question:
how does that answer it?
"In 5 years, radioactivity reduces the msas of a 100-gram sample of an element to 60 grams. for this element, find the number of years it would take for the original sample to be reduces to half its original mass."
the number that I get doesn't seem to fit, when i calculate the answer from what you guys showed me. (-.1021651248...)