1 answer:
Answer:
P(red) = .3
P(yellow) = .3
75 cubes in the box
Step-by-step explanation:
The probability has to add to 1
Since the number of red cubes equals the number of yellow cubes the probability has to be the same
.4 + x+x = 1
.4 +2x = 1
2x = 1-.4
2x = .6
Divide by 2
x = .6/2
x = .3
P(red) = .3
P(yellow) = .3
We know that
P(blue) = .4 = number of blue cubes/ total number of cubes
.4 = 30/total
total = 30/.4
total = 75
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D. relation is a function
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Answer:
1/3
Step-by-step explanation:
since the total number of marbles are 3+7+5=15
and the number of green marbles=5
so probability of three marbles drawn being green=5/15=1/3
C is your answer since it is the only one without any exponents
=|-11/6|=11/6
Everything in absolute value will become positive.
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