How Does Air Temperature and Pressure Affect Density Calculations?

[Claire_01]

A weather station at the airport measured a station pressure of 1014 mb. The density of dry air is 1.3 kg/m^3. The gas constant for dry air, R, is 287 J/kg-K. Calculate the temperature of the dry air at the airport.

1 mb = 100 J/m ^3

AND

The surface pressure at the airport then decreased to 1010 mb but the air temperature reamined the same (as the answer in #1). Calculate new density of air.*I'm really confused and I would greatly appreciate it if someone can walk me through this problemThis is what I have so far, I know you have to use the Ideal Gas law
P= p R T

1014 mb = 1.3 kg/m^3 x 287 j/kg-k x T

 

[Mindscrape]

Hey, that looks really good so far! Surely you know enough algebra to take it from there. Just as a comment though, make sure you watch your units!