Problem
- Save \& Exit Certify Lesson: 6.2 Exponential Models MACKENZIE CRAWFORD Question 2 of 9, Step 1 of 1 $1 / 10$ Correct 2 Statistics show that the fractional part of a pair of flashlight batteries, $P$, that is still good after $t$ hours of use is given by $P=4-0.02 t$. What fractional part of the batteries is still operating after 200 hours of use? Express your answer as a fraction or as a decimal rounded to six decimal places. Answer How to enter your answer (opens in new window) Keypa
Solution
Step 1 ：Substitute \(t = 200\) into the equation \(P=4-0.02 t\).
Step 2 ：Calculate the result to find the fractional part of the batteries that is still operating after 200 hours of use.
Step 3 ：After calculation, the result is 0.0. This means that after 200 hours of use, no fractional part of the batteries is still operating.
Step 4 ：The final answer is \(\boxed{0.0}\)
