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.(1 point)

Responses

3.99×103 seconds
3.99 times 10 cubed seconds

0.399×106 seconds
0.399 times 10 superscript 6 baseline seconds

3.99×104 seconds
3.99 times 10 superscript 4 baseline seconds

3.99×105 seconds
3.99 times 10 superscript 5 baseline seconds

1 answer

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

Total number of songs = 1,900
Average time of each song = 3.5 minutes

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

Since there are 60 seconds in a minute, we need to convert the total time in minutes to seconds.

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

Expressing this answer in scientific notation, we have:

3.99 × 10^5 seconds