Question

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You use 4 gallons of water on 30 plants in your garden. At that rate, how much water will it take to water 45 plants?

Answer 1

It will take 6 gallons of water.

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

Answer 2

Explanation:

Ratio of water to plants= 4 : 30

Simplifying,we will get, 2:15

2:15 = x:45

`(2)/(15)=(x)/(45)\\\\(2)/(15)*45=x\\\\2*3=x\\6=x`

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