Answer to my question? (In description)

Question

John's home is heated by a hot water circulating in pipes. Recently, the system developed a leak. It loses 2 millimeters every 10 minutes. How much water does the system lose in 30 minutes?

Answer 1

You can solve this by setting up a proportion:

 

10 min → 2 mm

30 min → x 

 

x = (30 min)(2 mm)/(10 min) = 6 mm

 

The system loses 6 millimeters of water in 30 minutes.