Tell whose CD collection has the greater ratio of rock CDs to total CDs. Glen has 9 rock CDs, 4classical CDs, and 5 other kind of CDs. Nina has 12 rock CDs, 8 classical CDs, and 7 other kind of CDs.

HELP PLZZZZZ

Glen: 9/18 = 1/2 = 27/54

Nina: 12/27 = 24/54

To determine whose CD collection has the greater ratio of rock CDs to total CDs, we need to calculate the ratio for each person.

For Glen:
Total CDs = 9 rock CDs + 4 classical CDs + 5 other kind of CDs = 18 CDs
Ratio of rock CDs to total CDs = 9 rock CDs / 18 total CDs = 1/2

For Nina:
Total CDs = 12 rock CDs + 8 classical CDs + 7 other kind of CDs = 27 CDs
Ratio of rock CDs to total CDs = 12 rock CDs / 27 total CDs ≈ 0.4444

Comparing the ratios, we can see that Glen's CD collection has the greater ratio of rock CDs to total CDs (1/2) compared to Nina's CD collection (~0.4444).

To determine whose CD collection has the greater ratio of rock CDs to total CDs, we need to calculate the ratio for both Glen and Nina.

First, let's calculate Glen's ratio of rock CDs to total CDs. Glen has a total of (9 rock + 4 classical + 5 other) = 18 CDs in his collection. The ratio of his rock CDs to total CDs is 9/18 = 0.5.

Next, let's calculate Nina's ratio of rock CDs to total CDs. Nina has a total of (12 rock + 8 classical + 7 other) = 27 CDs in her collection. The ratio of her rock CDs to total CDs is 12/27 ≈ 0.444.

Comparing the ratios, we find that Glen has a higher ratio of rock CDs to total CDs, with a ratio of 0.5 compared to Nina's ratio of 0.444. Therefore, Glen has the greater ratio of rock CDs to total CDs in his collection.