SOLUTION: To begin a bacteria study, a petri dish had 1900 bacteria cells. Each hour since, the number of cells has increased by 4.2% . Let t be the number of hours since the sta

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: To begin a bacteria study, a petri dish had 1900 bacteria cells. Each hour since, the number of cells has increased by 4.2% . Let t be the number of hours since the sta      Log On


   

Question 1057748: To begin a bacteria study, a petri dish had
1900
bacteria cells. Each hour since, the number of cells has increased by
4.2%
.
Let
t
be the number of hours since the start of the study
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
To begin a bacteria study, a petri dish had 1900 bacteria cells.
Each hour since, the number of cells has increased by 4.2%
Let t be the number of hours since the start of the study
:
f(t) = no of bacteria
f(t) = 1900(1.042)^t
:
Graphically, no. of bacteria y axis, hours x axis
+graph%28+300%2C+200%2C+-5%2C+20%2C+-1000%2C+5000%2C+1900%281.042%5Ex%29%29+