Question

2 kenny has 2 red marbles, 3 blue marbles, and 4 black marbles. which ratio compares a part to the whole? a 2 to 7 c 5 to 4 b 3:9 d 9:5 the whole in this problem is the total of the red, blue, and black marbles.

Explanation:

Step1: Calculate total marbles

Total marbles = Red + Blue + Black = \(2 + 3 + 4 = 9\)

Step2: Analyze each option

• Option A: 2 (red) to 7. Total is 9, so incorrect.
• Option B: 3 (blue) to 9 (total). This compares part (blue) to whole (total), correct.
• Option C: 5 to 4. 5 isn't a part, 4 is black, incorrect.
• Option D: 9:5. 9 is total, 5 not a part, incorrect.

Answer:

B. 3:9