Jim’s 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.

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

The average time per song in seconds is 3.5 minutes * 60 seconds/minute = 210 seconds.

Therefore, the total number of seconds the playlist will play is 1,900 songs * 210 seconds/song = 399,000 seconds.

In scientific notation, this is equivalent to 3.99 × 10^5 seconds.