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prooftheory
10-12-2008, 04:44 PM
The mean of four integers is 85. If the largest is 97, what's the mean of the other three?

x is the lowest number
y is the second lowest number
z is the third lowest number

(x+y+z+97)/4 = 85

stapel
10-12-2008, 06:01 PM
The mean of four integers is 85. If the largest is 97, what's the mean of the other three?

(x+y+z+97)/4 = 85
Okay. Now solve. Then divide through by three to get the average.

Eliz.