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posted by JO 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?

70 - 58 = 12 degrees in five hours 12/5 = 2.4 degrees per hour drop or -2.4 degrees per hour

Evaluate. | –48 |

+48

During a six hour period, the temperture dropped 18degrees F. Find the average hourly change in the temperature.

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