Respuesta :

salatulmaghrib
It will take 6 gallons of water.

45 is 30 * 1.5.
6 is 4 * 1.5.
devishri1977

Answer:

Step-by-step explanation:

Ratio of water to plants= 4 : 30    

Simplifying,we will get, 2:15

2:15 = x:45

[tex]\frac{2}{15}=\frac{x}{45}\\\\\frac{2}{15}*45=x\\\\2*3=x\\6=x[/tex]

6 gallons of water should be used to water 45 plants.

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