Step-by-step explanation:
There are four possible values of X: 0 rats show side effects, 1 rat shows side effects, 2 rats show side effects, or all 3 rats show side effects.
Probability X = 0:
P = (1 − 0.5) (1 − 0.4) (1 − 0.3)
P = 0.21
Probability X = 1:
P = (0.5) (1 − 0.4) (1 − 0.3) + (1 − 0.5) (0.4) (1 − 0.3) + (1 − 0.5) (1 − 0.4) (0.3)
P = 0.44
Probability X = 2:
P = (0.5) (0.4) (1 − 0.3) + (0.5) (1 − 0.4) (0.3) + (1 − 0.5) (0.4) (0.3)
P = 0.29
Probability X = 3:
P = (0.5) (0.4) (0.3)
P = 0.06
The decimal equivalent is 0.25.
Answer:
Cost price=100%
Step-by-step explanation:
Answer:
A. 85
Step-by-step explanation:
Kevin will be left with 2 ounces of mixed nuts in the can
Step-by-step explanation:
Given
Total nuts = 16 ounces
As Kevin gave 1/2 of the nuts to his sister, he will be left with

He is left with 8 ounces of mixed nuts
The he eats 3/4 of the remaining

so he is left with 8 - 6 = 2 ounces of mixed nuts
Hence
Kevin will be left with 2 ounces of mixed nuts in the can
Keywords: Fractions, operations on fractions
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