Question

jens music library on his phone holds 1,900 songs. The songs have an average time of 3.5 minutes. Use scientific notation to find the total number of seconds the playlist will play. Express the answer to the exact decimal place.

Answer 1

To find the total number of seconds the playlist will play, we need to multiply the number of songs by the average time of each song.

Number of songs * Average time of each song = Total time

1,900 songs * 3.5 minutes/song = 6,650 minutes

Next, we need to convert minutes to seconds. Since there are 60 seconds in one minute, we can multiply the number of minutes by 60 to get the total number of seconds.

6,650 minutes * 60 seconds/minute = 399,000 seconds

Now, let's express this answer in scientific notation. Scientific notation is a way of expressing very large or very small numbers as the product of a number between 1 and 10 and a power of 10.

399,000 = 3.99 × 10^5 seconds

Therefore, the total number of seconds the playlist will play is 3.99 × 10^5 seconds.