The price of a coat was reduced from $40 to $30. By what percentage was the price of the coat reduced?
2 answers:
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Answer:
Step-by-step explanation:
Given
The above table
Required
Determine the probability of a sum that is a multiple of 6
Represent the event that an outcome is a multiple of 6 with M.
List out all possible values of M
Number of M is
Total possible outcome is:
The theoretical probability is then calculated as follows:
In this case, it is:
Simplify fraction
Answer: c.
Step-by-step explanation:
As per given , we have
Total number of residents injured from roller-skating =1,800
Total number of deaths from roller-skating = 90
Formula for Mortality rate :
Then, the proportional mortality ratio (%) due to roller-skating was
=
= 5%
Hence, the correct answer is c.