Question 329332
Let p(green) = probability of picking a green marble

p(green) = 10/total number of marbles

p(green) = 10/(10 + 4)

p(green) = 10/14

p(green) = 5/7

Done!

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You Said:

"Thank you and this helped me but I do not no how you got the 5/7 when it was 10/14 at first but thank you once again." 

My Reply:

Both fractions are equivalent fractions. I simply reduced 10/14 to 5/7 but both answers are correct.

Understand?