4x/15 = 60/x
4x^2 = 900
x^2 = 225
x = 15
Answer:
12 the answer
Step-by-step explanation:
The students on the right hand side had better overall results
There were less people on the left hand side of the room this affects the average even with the right hand side having two zeros, another thing which the left hand side didn’t have.
Hope I helped
