Question

The mean of Julie's first five quiz scores is 77 what score does Julie need on the six quiz to raise her averaged 80

Answer 1

She would need about a 90 or so.

Answer 2

The answer is 83... Since we aren't given the rest of the numbers, we use 77 and we use guess and check till we get to 83. 77 + 83=160 divided by 2 is her desired average of 80...