Given 1 scores of , what should be score number 2 in order to attain an average score of ?
Setup Average Equation:
| Average = | Sum of our 1 numbers + unknown score of x |
| Total Numbers |
| = | + x |
| 2 |
Cross Multiply
+ x = x 2x + 0 = 0
| Average = | Sum of our 1 numbers + unknown score of x |
| Total Numbers |
| = | + x |
| 2 |