posted by kristie .
use the five steps for problem solving. the average of two test scores is 79. if one test score is eleven less than the other, what are the two test scores?
1/2 (a + b) = 79
a - b = 11
I don't know what "five steps" you have been taught, but this is a standard algebra problem
Solve by elimination, substitution, or trial and error.
The scores will not be integers in this case.