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wlad13 [49]
3 years ago
12

Charlene has 12 plastic cups. Of the 12 plastic cups,3 were green,4 are red and 5 are blue.She stacks the cups into a single sta

ck in random order. What is the probability that the cup on top of the stack is not green
Mathematics
1 answer:
8_murik_8 [283]3 years ago
5 0
The probability is calculated by dividing the non-green cups by the total of them:
total = 12
non-green = 4 + 5 = 9
probability of non-green = 9/12 = 0.75 = 75%
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I don't know what constructions you were taught.

a "similar" triangle is a triangle with exactly the same angles as the other triangle, but the lengths of all sides are stretched or shortened by the same scaling factor f.

by saying 1:2 she means the second triangle should have sides with twice the lengths of the first triangle (f=2).

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