SOLUTION: The sum of the two digits of a number is 9. If the tens digit is one-half the units digit, what is the number?
Let t = the tens digit, u = the units digit, and t + u = 9. Which
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-> SOLUTION: The sum of the two digits of a number is 9. If the tens digit is one-half the units digit, what is the number?
Let t = the tens digit, u = the units digit, and t + u = 9. Which
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Question 1061901: The sum of the two digits of a number is 9. If the tens digit is one-half the units digit, what is the number?
Let t = the tens digit, u = the units digit, and t + u = 9. Which of the following equations would complete the system?
A.) t=1/2u
B.) u=1/2t
C.) t-u=1/2 Answer by jorel555(1290) (Show Source):
You can put this solution on YOUR website! Let t be the tens digit, and u be the ones digit. Then:
t+u=9
t=u/2. So:
u/2+u=9
3u/2=9
3u=18
u=6
t=3
The number is 36 (answer A). ☺☺☺☺
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