15. At a constant temperature (T), the volume (V) of a gas varies inversely as the pressure (P). If the pressure of a certain gas is 40 N/m2 when the volume is 600 m3 what will the pressure be when the
volume is reduced to 320 m3?

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.