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klasskru [66]
3 years ago
15

Boris has 20 Cd's in his music collection. Given that 20% of the CD's are rock music and 60% of them are pop music. How many CD'

s are other types of music.

Mathematics
2 answers:
kow [346]3 years ago
6 0
The total amount of CD's are 100% so 100 - (20+60) = 20% -> the percentage of the other types of music. Then multiply 20% by 20 to get 4. So there are 4 CD's that are other types of music
ZanzabumX [31]3 years ago
3 0
It is all the answer u may need look at the picture.

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