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人気のある Word Problems >

Jack is 3 times as old as Lacy. 7 years from now the sum of their ages will be 34 . How old are they now?

解

J a c k i s 3 t im es a s o l d a s L a cy . 7 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 34 . Ho w o l d a re t h ey n o w ?

解

Lacy^{'} s age is : 5

Jack^{'} s age is : 15

解答ステップ

Translate the problem into an equation:

3 x + 7 + x + 7 = 34

x

を解く

3 x + 7 + x + 7 = 34 : x = 5

発見する age

Lacy^{'} s age is : 5

Jack^{'} s age is : 15

人気の例

The diameter of a circle is 8 m. Find its 円周 in terms of pipi.Trisha is 4 years older than Caila now. The sum of their ages in 8 years from now will be 38. How old are Caila and Trisha now?circle has a 円周 of 28.26 units. What is the diameter of the circle? Use 3.14 for pi and enter your answer as decimal.Dominc has two apples he eats one, how many does he have left A circle has a 円周 of 35cm. What is its exact diameter?