Question

The amount of time t(in minutes) that it takes to put out a fire varies inversely with G, the volume of water used (in hundreds of gallons). When G is 2, t is 20. Find how long it takes to put out a fire when 500 gallons of water (G = 5) are used.

Answer 1

50 minutes.

Explanation:

You can use a ratio to solve:

`t` :
`G`

20 : 2

10 : 1

`x` : 5

`x` must be 50 minutes since 100 gallons of water takes 10 minutes.