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人気のある >

Kevin is 6 years older than Timothy, but 4 years ago Kevin was twice as old as Timothy. Find their present ages.

解

Kevin is 6 years older than Timothy, but 4 years ago Kevin was twice as old as Timothy. Find their present ages.

解

Kevin^{'} s age is : 16

Timothy^{'} s age is : 10

解答ステップ

Translate the problem into an equation:

x - 4 = 2 (x - 6 - 4)

x

を解く

x - 4 = 2 (x - 6 - 4) : x = 16

発見する age

Kevin^{'} s age is : 16

Timothy^{'} s age is : 10

人気の例

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