A bag contains 6 red marbles, 3 blue marbles and 8 green marbles. If three marbles are drawn out of the bag, what is the probabi
1 answer:
This is a 4 step problem.
Find the probability of drawing a green marble the first time
<em>8 green marbles ÷ 17 total marbles </em>
Next, we find the probability of drawing a green marble the second time
<em>7 green marbles ÷ 16 total marbles </em>
Find the probability of drawing a green marble the third time
<em>6 green marbles ÷ 15 total marbles </em>
We<u> take away one</u> from the total marbles and green marbles each time because we are finding the probability that we draw a green marble <u>all three times </u>
Last step:
Multiply all the probabilities
×
×
The final answer is 7/85 or an 8% chance
If you were curious, the decimal version of this answer is <u>0.08235294</u>
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Answer:
The expression used to find the change in temperature per hour is Algebraic expression
Thus per hour; the temperature falls at the rate of
Step-by-step explanation:
A temperature falls from 0 to in
Which expression finds the change in temperature per hour.
From the above given information;
The initial temperature is 0
The final temperature is
The change in temperature is
Thus;
-12.25 ° = 3.5 hours
To find the change in x° per hour; we have;
x° = 1 hour
The expression used to find the change in temperature per hour is Algebraic expression
From above if we cross multiply ; we have;
(- 12.25° × 1 hour) = (x° × 3.5 hour)
Divide both sides by 3.5 hours; we have:
x° = - 3.5
x° =
Thus per hour; the temperature falls at the rate of