Question

Trey had 440 songs on his mp3 player.now he has 473 songs.what is the percent of increase in the number of songs on his mp3 player?

round to the nearest tenth if necessary.

Answer 1

There is 7.5% increase in the number of songs on his mp3 player.

Explanation:

Original Songs in mp3= 440 songs

Final Songs in mp3= 473 songs

We need to find percent of increase in the number of songs on his mp3 player.

The formula used is:
`Percent \ of \ increase = (Final \ Value \ -\ Original \ Value)/(Original \ Value) * 100`

Now putting values and finding percent of increase

`Percent \ of \ increase = (Final \ Value \ -\ Original \ Value)/(Original \ Value) * 100\\Percent \ of \ increase = (473-440)/(440) * 100\\Percent \ of \ increase = 7.5\%`

So, there is 7.5% increase in the number of songs on his mp3 player.