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ozzi
3 years ago
10

Of 100 students, 30 can speak French, 10 can speak German, and 6 can speak both French and German. If a student is picked at ran

dom, what is the probability that he or she can speak French or German? (Enter your probability as a fraction.)
Mathematics
1 answer:
joja [24]3 years ago
6 0

Answer:

the correct answer would be 1,800

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(8*4*2/8*7)^2 x (8^0/7^-3)^3 x 7^-9

Simplify the equations:

(8*4*2/8*7)^2 = (64/56)^2 = (8/7)^2

(8^0/7^-3)^3 = (1/7^-3)^3 = 7^9

Now you have :

(8/7)^2 x 7^9 x 7^-9

Multiply 7^9 x 7^-9 by adding the exponents to get 7^0, which = 1

Now you have:

(8/7)^2 x 1

(8/7)^2 = (8x8) / (7x7) = 64/49

64/49 x 1 = 64/49

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