the ground trmperature at abc airport is 5°F for every 500 feet gained in altitude the temperature outside the plane drops 1.6°F. at an altitude of 3,000 feet, what will be the likely outside temperature?
Multiply 1.6 by 6 (you find six because it's for every 500 feet, and you went 3000), this equals 9.6. That's the change in temperature. So 5-9.6=-4.6. At 3000 feet the temperature is -4.6°F.
