Answer:
91
Step-by-step explanation:
The mean is calculated as
mean = [tex]\frac{sum}{count}[/tex]
Given mean = 85 , then letting x be the 7th number
[tex]\frac{82+93+68+93+70+98+x}{7}[/tex] = 85 ( multiply both sides by 7 )
504 + x = 595 ( subtract 504 from both sides )
x = 91
The 7th number is 91
