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igomit [66]
3 years ago
13

A bag contains 100 marbles, some red and some purple. Suppose a student, without looking, chooses a marble out of the bag, recor

ds the color, and then places that marble back in the bag. The student has recorded 9 red marbles and 11 purple marbles. Using these results, predict the number of red marbles in the bag.​
Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
8 0

Answer:

45

Step-by-step explanation:

9 of the 20 drawn were red

9/20 * 100 = 45

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