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Hey guys need some help
The tens digit of a number is twice the ones digit. The sum of the digits in the number is 12. What is the number?

Respuesta :

sqdancefan

9514 1404 393

Answer:

  84

Step-by-step explanation:

Let t represent the tens digit. The ones digit is half that. Then the sum of digits is ...

  t +t/2 = 12

  (3/2)t = 12

  t = (2/3)12 = 8

The tens digit is 8, the ones digit is 4. The number is 84.