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Mathematics, 26.07.2019 08:30 hoyanna69

Amodel builder has 30 pieces of balsa wood in a box. four pieces are 15 inches long, 10 pieces are 12 inches long, and the rest are 8 inches long. what is the probability the builder will pull an 8-inch piece from the box without looking?

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Amodel builder has 30 pieces of balsa wood in a box. four pieces are 15 inches long, 10 pieces are 1...
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