Deborah playlist on her mp3 player had a variety of songs on it. she had 21 country songs, 18 alternative songs, 16 pop songs, and 18 rock songs. use the bar diagram to write and evaluate twnumercial expressions to represent the total number of songs on deborah mp3 player using multiplication and addition

Given:

21 country songs
18 alternative songs

16 pop songs

18 rock songs

Find:

Total number of songs on Deborah’s Mp3 player using addition and multiplication

Solution:

For addition, we just directly add all the variables:

21 country songs + 18 alternative songs + 16 pop songs + 18 rock songs = 73 total number of songs

For multiplication, we must take note that there are two 18 songs with different genre so we can solve it using multiplication like this:

(18 songs (alternative and rock) * 2) + 21 country songs + 16 pop songs = 73 total number of songs.

Overall, there are 73 number of songs in Deborah’s MP3 player.

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