Problema Solution
A student has two test scores. The difference between the scores is 16
and the mean, or average, of the scores is 88
.
What are the two test scores?
Answer provided by our tutors
Let 'x' and 'y' represent the two test scores.
Since the difference between the scores is 16 we can write:
x - y = 16
The average of the two scores is 88 means:
(x + y )/2 = 88
We have the following system of equations:
x - y = 16
(x + y )/2 = 88
........
click here to see the system of equations solved for x and y
........
x = 96
y = 80
The scores of the two tests are 96 and 80.