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Peachy45go
Answered

18. Trixie has 6 blouses and 7 skirts. How many different outfits can she make? A) 7 B) 42 C) 6 D. 13
19. The weather forecast said that the probability that it will rain today is 70%. What is the probability that it will not rain? A) 30% B) 70% C) 100% D) 60%
20. The probability of picking a black marble is 90%. If there are 20 marbles in the jar, how many marbles that are not black? A) 1 B) 9 C) 2 D) 18​

Sagot :

Calebxzzgo

18. C

  • There are only 6 < 7 blouses, so it's 6.

19. B

  • 0.6 * 0.7 = 0.12
  • 1 - 0.12 = 70%

20. C

  • 20 × ( 1 - 0.9 )
  • 20 × 0.1 = 2

Tama po lahat yan.

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