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人気のある Word Problems >

Jack is twice as old as Lacy. In three years the sum of their ages will be 54.How old are they now?

解

J a c k i s tw i ce a s o l d a s L a cy . I n t h ree ye a rs t h e s u m o f t h e i r a g es w i ll b e 54. Ho w o l d a re t h ey n o w ?

解

Lacy^{'} s age is : 16

Jack^{'} s age is : 32

解答ステップ

Translate the problem into an equation:

2 x + 3 + x + 3 = 54

x

を解く

2 x + 3 + x + 3 = 54 : x = 16

発見する age

Lacy^{'} s age is : 16

Jack^{'} s age is : 32

人気の例

Maraheb’s parents invested 14,000 at 3% interest compounded quarterly. How much money will be in the account after 10 years The square root of the sum of two consecutive integers is 7. Find the two integers.Find the area of a circle with a 直径 of 16.the sum of two numbers is 25. Their 差 is 7.Rick inherited some money from his grandfather and put it in a bank account that earns 4% interest compounded annually. After 7 years, Rick had 700.00 in the bank account. How much interest did he earn? write answer with three decimals