SOLUTION: the average temperature for 5 days was 100 degrees, then it was cold for 1 day. that brought the average down to 90 degrees for the 6-day period. what was the temperature on the 6t

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Question 1151654: the average temperature for 5 days was 100 degrees, then it was cold for 1 day. that brought the average down to 90 degrees for the 6-day period. what was the temperature on the 6th day?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

the average temperature for 5 days was 100 degrees, then it was cold for 1 day. that brought the average down to 90 degrees for the 6-day period.
5 days temperature = 100
So the temperature have to add to 500
%285%2A100%2Bx%29%2F6=90
500%2Bx=540
x=540-500
x=40

the temperature on the 6th day was 40 degrees