SOLUTION: A Steinway piano should be placed in a room where the relative humidity h is between 38% and 72%. Express this range with an inequality containing an absolute value.

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Question 711163: A Steinway piano should be placed in a room where the relative humidity h is between 38% and 72%. Express this range with an inequality containing an absolute value.
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
We are essentially converting the inequality

%0D%0A38%3CT%3C72%0D%0A

into an absolute value inequality

The middle of the interval is

abs%2838%2B72%29%2F2=55

The halfway distance on the interval is

abs%2838-72%29%2F2=17


therefore our interval is

abs%28x-55%29%3C17


:)