# SOLUTION: The weight M of an object on Mars varies directly as its weight E on Earth. A person who weighs 95 lb on Earth weighs 38 lb on Mars. How much would a 100-lb person weigh on Mars?

Algebra ->  Algebra  -> Expressions-with-variables -> SOLUTION: The weight M of an object on Mars varies directly as its weight E on Earth. A person who weighs 95 lb on Earth weighs 38 lb on Mars. How much would a 100-lb person weigh on Mars?       Log On

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 Click here to see ALL problems on Expressions-with-variables Question 187598: The weight M of an object on Mars varies directly as its weight E on Earth. A person who weighs 95 lb on Earth weighs 38 lb on Mars. How much would a 100-lb person weigh on Mars? Found 2 solutions by rcmcc, stanbon:Answer by rcmcc(152)   (Show Source): You can put this solution on YOUR website!This is a simple ratio question, because you are looking for the ratio beween E and M you simply have to divide the two numbers. 38/95=0.4 Now that you know the ratio is .04 simply multiply it with the weight of the person on earth 0.4x100=40 A 100 lb person would weigh 40 pounds on mars. Answer by stanbon(57377)   (Show Source): You can put this solution on YOUR website!The weight M of an object on Mars varies directly as its weight E on Earth. A person who weighs 95 lb on Earth weighs 38 lb on Mars. ---------------------------- M = kE --------- Find "k": 38 = k*95 k= (38/95) ----- Equation: M = (38/95)E ---------------------------------- How much would a 100-lb person weigh on Mars? M = (38/95)*100 M = 40 lbs --------------------------- Cheers, Stan H.