The denominator of a fraction is 1 more than 3 times the numerator. If the denominator is doubled and the numerator is increased by 2, the value of the resulting fraction is 1/4. Find the original fraction.
Answer:
6 red balls
Step-by-step explanation:
The probability in the first pick
6/21
The probability in the second pick (without replacement)
5/20
the requested probability
(6/21)(5/20) = 30/420
simplification
30/420 = 3/42 = 1/14
Hope this helps
The answer is gonna be (4,3) .
Answer:
<em>The function to represent this relationship will be: </em>
Step-by-step explanation:
varies inversely with . That means......
where is a proportional constant.
Given that, when , then
Plugging these values into the above equation, we will get.....
Now plugging this into equation (1).....
So, the function to represent this relationship will be:
Answer:
Step-by-step explanation:
Given
Required
Probability of selecting 2 toys of different types
From the question, we understand that all toys are different i.e. 1 of each type.
And the selection is without replacement;
So, after the first toy is selected; there are n - 1 toys left.
So, the probability is:
Substitute