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If two dogs together weighs 36 pounds and Fido weighs twice as much as Rex how much does each dog weigh?
Wiki User
∙ 16y ago
Fido weighs 24 lbs, Rex weighs 12 lbs. This is simple algebra, you figure that if fido weighs twice as much as rex, and assume 'x' is rex's weight, you can figure 2x + x = 36, you can simplify that to 3x = 36. Divide both sides by 3 (because you have 3x) and you get x = 12 (rex's weight)
Wiki User
∙ 16y ago
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