Answer:
about 0.0927 seconds
Step-by-step explanation:
Put the given information into the given formula and solve for the remaining variable. It is a linear equation, solved in the usual way.
ln(0.430/0.750) = -7.50t/1.25 . . . substitute the given information
-ln(43/75)/6 = t ≈ 0.092714 . . . . . divide by the coefficient of t
Rounded to 3 significant figures, the time is 0.0927 seconds.
