Answer ↣ 12 gallons per minute 
 
Step-by-step explanation ↣ Ok so if the garden hose supplies 36 gallons of water in 3 minutes, then the ratio is 36:3 because every 3 minutes the garden hose "sprays" 36 gallons. 
 
To simplify this ratio, you need find the amount of water the garden hose supplies in 1 minute. 
 
Well to get from 3 to 1, you have to divide by 3. 
 
Do the same thing to 36. 36/3 equals 12. 
 
So the final ratio is 12:1 
 
This is the unit rate. The unit rate is when one variable is 1 unit (most of the time it is speed). 
 
You can multiply 1 by any number and multiply 12 by the same number. 
 
Here are some ratios... 
 
m=minutes 
 
g=gallons 
 
1m:12g 
 
2m:24g 
 
3m:36g 
 
4m:48g 
 
5m:60g 
 
Hope this helped! 
 
BTW why do I sound like this I'm not a aesthetic person-