Posted by JO on Sunday, July 20, 2008 at 1:15pm.
Suppose the temperature outside is dropping at a constant rate. At noon , the temperature is 70 degrees f and it drops to 58 degrees f at 5:00 P.M. How much did the temperature change each hour?

algebra  Damon, Sunday, July 20, 2008 at 1:19pm
70  58 = 12 degrees in five hours
12/5 = 2.4 degrees per hour drop or 2.4 degrees per hour

algebra  JO, Sunday, July 20, 2008 at 6:54pm
Evaluate.  –48 

algebra  Damon, Sunday, July 20, 2008 at 7:04pm
+48

algebra  Jackie, Wednesday, August 24, 2011 at 9:46pm
During a six hour period, the temperture dropped 18degrees F. Find the average hourly change in the temperature.
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