3 years ago

Picture attachment below

Mathematics

1 answer:

alex41 [277]3 years ago

7 0

Answer:

69.08

Step-by-step explanation:

round from 69.115

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The ratio of rock music to total CDs that ella owns is 25/40. Paolo has 50 rock music CDs. The ratio of rock music to total CDs

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They own a total of 120 CDs.

GIVEN:
Ella: ratio of rock music to total CDs that she owns 25/40
Paolo: has 50 rock music CDs. The ratio of rock music to total CD is equal to Ella's ratio.

Proportion: a/b = c/d where ad = bc

25/40 = 50/x
25x = 40 * 50
25x = 2000
25x / 25 = 2000 / 25
x = 80 total of Paolo's CDs

Total of Ella's CDs = 40
Total of Paolo's CDs =<u> 80</u>
Total CDs in all 120

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Answer:

Step-by-step explanation:

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