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lions [1.4K]
3 years ago
10

Sabina has for $40 she paid d dollars for lunch and 0.5d dollars for a snack . Which expression represents the amount of money S

abrina has left
Mathematics
1 answer:
rewona [7]3 years ago
6 0
40- ( d+0.5) = the money she has left
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Please help: A box contains 5 yellow balls, 3 blue, and 1 red ball. Two balls are drawn at random. Find the probability that:
Y_Kistochka [10]

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a) 0.2778

b) 0.3611

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Second ball being yellow after one yellow was drawn: we have 4 yellows and 8 balls, so P2 = 4/8 = 1/2

Both yellows: P = P1 * P2 = 5/18 = 0.2778

b) Both blues:

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P2 = 2/8 = 1/4

P = P1 * P2 = 1/12 = 0.0833

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or

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or

First red: P3 = 1/9

Second blue: P4 = 3/8

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