In 1996, an outbreak of a disease infected 19 people in a large community. By 1997, the number of those infected had grown to 40. Find an exponential growth function that fits the data. (Round decimals to three places.)

27 +27 or 27times 2=54

the diffrence is 0

the answer would be 0.54

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

this is a good question! i’ll do some research and what i find, i’ll contact you asap when i have something! ✊