2.) A bookshelf contains seven math textbooks and three science

Mathematics

2 answers:

sergejj [24]3 years ago

7 0

B 3 out of 10 is correct

uranmaximum [27]3 years ago

7 0

Answer: A

Step-by-step explanation:

the probability of the first book being science is (science books/total books)

there are 3 science books and 7 + 3 = 10 total books

so the probability the first time is 3/10

if you pick a science book the first time and don't replace it, the number of science books drops to 2, and the total books drops to 9

so the probability the second time is 2/9

now multiply these two values to find the probability of both being science books

3/10 x 2/9

= 6/90

= 1/15

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