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4. If 1 gallon of water weighs 8.34lbs, how much does 3.75 gallons weigh?
31.275lbs

  • math -

    Set up a proportion and solve for a letter of choice.

    I will let w = weight for 3.75 gallons of water since we are searching for weight.

    So, w = weight we are searching for.

    1 gallon/3.75 gallons = 8.34 weights/w

    Cross-multiply to find w.

    w = 8.34 times 3.75

    w = 31.275 IBS

    Is this clear?

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