At sea level, the height is 0 and the pressure is 98 kilopascals
At 1000 ft, the height is 1000 and the pressure <span>decreases about 11.41%
</span>i(100%-11.41%)/100----> (0.8859)
therefore 1) at 1000 ft--------> the pressure is 98*(0.8859)----------> 86.82 kilopascals 2) at 2000 ft--------> the pressure is 86.82*(0.8859)-------> 76.91 kilopascals 3) at 3000 ft--------> the pressure is 76.91*(0.8859)-------> 68.14 kilopascals 4) at 4000 ft---------> the pressure is 68.14*(0.8859)-------> 60.36 kilopascals
the answer is <span>The pressure at an altitude of 4000 m is about </span>60.36 kilopascals
