SOLUTION: Use Exponential function to solve: 75 million people died in World War 2 spread over 6 years. Right now in the World 13 000 people have died due to the pandemic. If the doubling

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Use Exponential function to solve: 75 million people died in World War 2 spread over 6 years. Right now in the World 13 000 people have died due to the pandemic. If the doubling      Log On


   



Question 1154250: Use Exponential function to solve: 75 million people died in World War 2 spread over 6 years. Right now in the World 13 000 people have died due to the pandemic. If the doubling time is 5 days (many people think it will decrease to 3 days) how long before the death toll will be greater than World War 2?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+2k+=+k%2A%28+1+%2B+r+%29%5E5+
+2+=+%28+1+%2B+r+%29%5E5+
+log%28+2+%29+=+5%2Alog%28%28+1+%2B+r+%29%29+
+.301+=+5%2Alog%28%28+1+%2B+r+%29%29+
+log%28+1+%2B+r+%29+=+.06021+
+1+%2B+r+=+10%5E.06021+
+1+%2B+r+=+1.1487+
+r+=+.1487+
----------------------
+75000000+=+13000%2A%28+1+%2B+.1487+%29%5En+
+5769.231+=+1.1487%5En+
+log%28+5769.231+%29+=+n%2Alog%28+1.1487+%29+
+3.7611+=+n%2A.0602+
+n+=+62.476+
62.476 days
-----------------------
Definitely get a 2nd opinion
( unless you already have the answer )
------------------------------------------
check:
+2+=+%28+1+%2B+r+%29%5E5+
+2+=+%28+1+%2B+.1487+%29%5E5+
+2+=+2.00001+
close enough
-------------------------
+75000000+=+13000%2A%28+1+%2B+.1487+%29%5En+
+75000000+=+13000%2A1.1487%5E62.476+
+75000000+=+13000%2A5773.895+
+75000000+=+75060630.85+
I think the error is due to rounding off