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The temperature change in a chemistry experiment was -2C every 30 min. The initial temperature was +6C. What was the temperature after 4 h?

 Nov 4, 2015
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The temperature change in a chemistry experiment was -2C every 30 min. The initial temperature was +6C. What was the temperature after 4 h

 

4 hours = 8 half hours

0, 1, 2, 3, 4,    5,  6,  7,  8   half hours

6, 4, 2, 0, -2, -4, -6, -8,  -10

 

-10 degrees C    

 Nov 4, 2015

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