Question

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?

Answer 1

9514 1404 393

Answer:

84

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.