Asked by Steve
The average of two test scores is 79. If one test score is eleven less than the other, what are the two test scores?
Answers
Answered by
Anonymous
a=first score
b=second score
b=a-11
(a+b)/2=79
a+a-11=2*79
2a-11=158
2a=158+11
2a=169 Divide with 2
a=169/2= 84.5
b=a-11
b=84.5-11
b=73.5
(a+b)/2= (84.5+73.5)/2=158/2=79
b=second score
b=a-11
(a+b)/2=79
a+a-11=2*79
2a-11=158
2a=158+11
2a=169 Divide with 2
a=169/2= 84.5
b=a-11
b=84.5-11
b=73.5
(a+b)/2= (84.5+73.5)/2=158/2=79
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