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jacob used 1/7 of liter of water to fill 1/9 of the fish aquarium. how many liters of water are needed to fill the aquarium

User MADMap
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1 Answer

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To find the result we can use proportion


(1)/(7) --------------- (1)/(9) \\ x ---------------1

Now we have crossmultiply, so

(1)/(7)*1= (1)/(9) *x /*9 (multiply both sides by 9)

(9)/(7)=x - its the result
User Joepetrakovich
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