SOLUTION: Two tanks must have a total capacity of 400 gallons. If one tank needs to be twice the size of the other, how many gallons should each tank hold?

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Question 104626: Two tanks must have a total capacity of 400 gallons. If one tank needs to be twice the size of the other, how many gallons should each tank hold?
Answer by HyperBrain(694) About Me  (Show Source):
You can put this solution on YOUR website!
Let x= the size of thge smaller tank
Then,
2x= the size of the bigger tank(one tank needs to be twice the size of the other)

Their sum is x+2x
x+2x=400------------------Two tanks must have a total capacity of 400 gallons
3x=400
x=400/3 or 133.33
2x= 266.66
Therefore, the tanks must hve sizes, 133.33 and 266.66 gallons!

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HyperBrain