Question

The bacteria in a dish triples every hour. At the start of the experiment therewere 400 bacteria in the dish. When the students checked again there were32,400 bacteria. How much time had passed? (Write your equation and solve forx; y= a • bx).

Answer 1

Given

The bacteria in a dish triples every hour. At the start of the experiment there

were 400 bacteria in the dish. When the students checked again there were

32,400 bacteria. How much time had passed? (Write your equation and solve for

x; y= a • bx)

Solution