Homework Help: math

Posted by carolyn on Sunday, October 24, 2010 at 3:10pm.

At 9:00 pm the outside temperature was 20 celcius, by midnight the temperature had dropped x degrees.
Which of the following represents the midnight temperature?

20 + x
20-x
20
20x

math - Jen, Sunday, October 24, 2010 at 3:32pm
20-x, because it DROPPED x degrees.

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