From the following equation, state which variables are in inverse relation and find the proportionality constant.

If a and b vary inversely, fill in the blanks:

Reema types 540 words during half an hour. How many words should she type in 6 minutes?

From the following equation state which two variables are directly proportional

, in this expression which power of x is in inverse relation with the fourth power of y.

Inverse variation can be written as 

Suppose that y varies inversely as x ² and that y = 10 when x = . 

   Find the value of y when x = 3.    

From the following equation state which variables are directly proportional and find the proportionality constant k.

From the following equation state which two variables are directly proportion and determine the proportionality constant K. 

The frequency of a vibrating guitar string varies inversely with its length. Suppose a guitar string 0.80 meters long vibrates 4 times per second. What frequency would a string 0.5 meters long have?