Math Help Please!!!
An enclosed gas exerts a pressure P on the walls of a container. This pressure is directly proportional to the temperature T of the gas, measured in Kelvin. If the pressure is 7 lb per square inch when the temperature is 420K, find the constant of variation.
A) 60
B) 1/60
C) 49
D) 1/49

Question

Math Help Please!!!
An enclosed gas exerts a pressure P on the walls of a container. This pressure is directly proportional to the temperature T of the gas, measured in Kelvin. If the pressure is 7 lb per square inch when the temperature is 420K, find the constant of variation.
A) 60
B) 1/60
C) 49
D) 1/49

anonymous · Answer

@Daniellelovee

godlovesme · Answer

p=tk
7=420k solve for k

anonymous · Answer

It is either A or B because 420 divided by 7 is 60

godlovesme · Answer

it's 7/420 which reduces to 1/60 but lemme check though

anonymous · Answer

It's B.

anonymous · Answer

But how do you know? @ApoorvaAnand

anonymous · Answer

P = (k)T
=> 7 = (k)420
=> k = 7/420 = 1/60 = B

anonymous · Answer

Thank you @ApoorvaAnand