Question

"An eighth-grade student completed a two-part math test. His score on Part A was eight points lower than his score on Part B. The sum of his points on the two tests was 172. What was his score on part B of the Math test?" When looking at this i came up with "A=b-8" and "A+B=172" ..... Would those be right? and then just plug in equation one into equation 2 and solve? If i do that i get B=90 and A=82; these are resonable answers because 90-82=8 and A was 8 lower than B?

Answer 1

so part a was 8 points lower and the total was 172
so 172-8=164 and u can divide that by 2 so 164/2=82
so part a would be 82 and part b would be 90