Question

WHO WANTS 60 POINTS??!!!! HELP ME!!!!

**NEED HELP??!!! Two Urgent Mathematical Questions!!!

1. The pressure of a gas P(v) varies inversely with the volume of the gas v. The pressure v. The pressure of a gas measures 15kg/cm2 when its volume is 300 cm3.

Which equation can be used to find the pressure of the gas when the volume is changed?

A.) p(v) = 20v
B.) p(v) = 20/v
C.) p(v) = 4500v
D.) p(v) = 4500/v

2. The function f(x) varies inversely with x and f(x) =8 when x =3.

What is f(x) when x = 2?

A.) 12
B.) 14
C.) 22
D.) 48

Answer 1

Okay the only one that I have learned so far, is the second question. Just plug in the answer choices as x, and see which ones match up to 2. Hope this helps.

Answer 2

The correct answer to question 1 is: (C. P (v)=4500v
The correct answer to question 2 is: (A. 12

Hope i helped!:)