Answer:
Height of the 12 cases will be = inches.
Step-by-step explanation:
Thickness of each DVD storage case = inches
Let number of DVD storage cases sold = x
Therefore, the height of cases sold will be represented by the expression
If the number of cases sold x = 12
So the height of the cases sold will be = inches
= inches
Therefore, the answer is inches.
Answer:
16.67% probability of getting 2 blues
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
The order in which the marbles are selected is not important. So we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
What is the probability of getting 2 blues?
Desired outcomes:
Two blue marbles, from a set of 4.
Total outcomes:
Two marbles, from a set of 9.
Probability:
16.67% probability of getting 2 blues