Posted by **Angel** on Friday, June 24, 2005 at 1:11am.

If the temperature on the ground is 70 degrees fernhet, then the temperature at A feet above the ground can be found from the expression -0.0035A + 70. I need to find the temperature at the following altitudes

a. 8,000 feet

b. 12,000 feet

c. 24,000 feet

I am trying to understand this formula can some one help me to understand this?

I think you just plug in each one of the altitudes for A. For example, for 8,000 feet, you would insert 8,000 for A, thus you get -0.0035(8,000)+70, which gives you 42 degrees. Do the same thing for the other altitudes. :)

Thank you so much that really did help i got it! the other to answers are 28 degrees, and -14 degrees.

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