Homework Help: Algebra 2

Posted by Juliet on Tuesday, April 3, 2012 at 1:06pm.

a math teacher is randomly distributing 15 rulers with centimeters labels and 10 rulers without centimeter labels. What si the probability that the first ruler she hands out will have centimeter labels and the second ruler will not have labels?

Algebra 2 - Reiny, Tuesday, April 3, 2012 at 2:34pm
prob(first has centimetres on it, the second does not)
= (15/25)(10/24) = 1/4

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