Variation: volume of gas varies directly as T, inversely as

[klubbhead024]

The volume V of a gas varies directly as the temperature T, and inversely as Pressure P. If V = 48 when T=320 and P=20 find V when T=280 and P=30

 

[tkhunny]

Learn the buzz words:

"Varies Directly" MEANS "= k*{stuff}"
"Varies Inversely" MEANS "= g/{stuff}"

Just write them down and fill in the blanks.