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Chapter 2: Problem 171

A one-semester chemistry course meets for \(1-\mathrm{h}\) sessions three times a week for 15 weeks. How many milliseconds will a student with perfect attendance spend in class during the semester?

Short Answer

Expert verified
A student with perfect attendance will spend 162,000,000 milliseconds in class during the semester.

Step by step solution

01

1. Calculate the total number of sessions during the semester.

Since there are 3 sessions per week and the course lasts for 15 weeks, the total number of sessions will be 3 multiplied by 15. Total sessions = 3 sessions/week × 15 weeks
02

2. Find the total time spent in class in hours.

Each session lasts 1 hour, so to find the total time spent in class in hours, multiply the total number of sessions by the length of each session (1 hour). Total hours = Total sessions × 1 hour/session
03

3. Convert total time spent in class to minutes.

We know that 1 hour has 60 minutes, so to convert total hours to total minutes, multiply total hours by 60. Total minutes = Total hours × 60 minutes/hour
04

4. Convert total time spent in class to seconds.

We know that 1 minute has 60 seconds, so to convert total minutes to total seconds, multiply total minutes by 60. Total seconds = Total minutes × 60 seconds/minute
05

5. Convert total time spent in class to milliseconds.

We know that 1 second has 1000 milliseconds, so to convert total seconds to total milliseconds, multiply total seconds by 1000. Total milliseconds = Total seconds × 1000 milliseconds/second Now let's do the calculations: Total sessions = 3 sessions/week × 15 weeks = 45 sessions Total hours = 45 sessions × 1 hour/session = 45 hours Total minutes = 45 hours × 60 minutes/hour = 2700 minutes Total seconds = 2700 minutes × 60 seconds/minute = 162000 seconds Total milliseconds = 162000 seconds × 1000 milliseconds/second = 162,000,000 milliseconds So, a student with perfect attendance will spend 162,000,000 milliseconds in class during the semester.

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