In a class of p students, the average (arithmetic mean) of the test scores is 70. In another class of n students, the average of the scores for the same test is 92.
When the scores of the two classes are combined, the average of the test scores is 86.

What is the value of p/n?"

Step-by-step explanation:

The average of a set of values is equal to the sum of all values in that set divided by .

Conceptually, if , the average should the mean of 70 and 92, which is 81. Since the combined mean is actually 86, we know that (just something to keep in the back of your mind).

To solve, write an equation using the definition of arithmetic mean (refer to the first sentence in the answer):

answer: 12

step-by-step explanation:

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.