MathStories.comTM
Copyright © 1999-2001 MathStories.com, Inc, 1426 Pine Grove Way, San Jose, California 95129 . All Rights Reserved.

Sheet # 82/Positive and Negative Numbers

Name: ________________________ Date_____________ 


Explain and Show Your Work.

Temperature drops at approximately 6.6 degrees C per kilometer as you go higher in the atmosphere. If the outside temperature is 20 degrees C at 2.5 kilometers, what will the temperature be at 6.5 kilometers? At 8.5 kilometers? At 10 kilometers?



































Answers for sheet # 82

6.5 km - 2.5 km = 4 Km

Temperature drops 6.6 degrees/Km

4 km x 6.6 degrees/Km = 26.4 degrees

Temperature at 6.5 km will be 20 degrees - 26.4 degrees = - 6.4 degrees


Temperature at 8.5 Km

Temperature at 6.5 km is -6.4 degrees.
8.5 km - 6.5 km = 2 km
2 km x 6.6 degree = 13.2 degrees

Temperature at 8.5 Km = - 6.4 - 13.2 = - 19.6 degree C

Temperature at 10 Km

- 19.6 - (6.6 x 1.5 km)
- 19.6 - 9.9 = 29.5 degrees