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人気のある Word Problems >

marc is five times as old as martha. four years ago, the sum of their ages was 50. how old are they now?

解

ma rc i s f i v e t im es a s o l d a s ma r t ha . f o u r ye a rs a g o, t h e s u m o f t h e i r a g es w a s 50. h o w o l d a re t h ey n o w ?

解

Martha^{'} s age is : 9 \frac{2}{3}

Marc^{'} s age is : 48 \frac{1}{3}

解答ステップ

Translate the problem into an equation:

5 x - 4 + x - 4 = 50

x

を解く

5 x - 4 + x - 4 = 50 : x = \frac{29}{3}

発見する age

Martha^{'} s age is : 9 \frac{2}{3}

Marc^{'} s age is : 48 \frac{1}{3}

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