Tim is 5 years older than JoAnn. Six years from now the sum of their ages will be 78

解

T im i s 5 ye a rs o l d er t han J o A nn . S i x ye a rs f ro m n o w t h e s u m o f t h e i r a g es w i ll b e 78

Tim^{'} s age is : 35 \frac{1}{2}

Joann^{'} s age is : 30 \frac{1}{2}

解答ステップ

Translate the problem into an equation:

x + 6 + x - 5 + 6 = 78

x

を解く

x + 6 + x - 5 + 6 = 78 : x = \frac{71}{2}

発見する age

Tim^{'} s age is : 35 \frac{1}{2}

Joann^{'} s age is : 30 \frac{1}{2}