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?

t = u
u = t
t - u =

Question

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?

t = u
u = t
t - u =

bookworm14 · Answer

3+6=9 the answer is 36 
3 is in the tens place
6 is in the ones place
3 is half of 6

anonymous · Answer

its multiple choice @Bookworm14

bookworm14 · Answer

uhm im not absolutly 100 % sure but if it was my work i would choose u=t
sry i couldnt help more

anonymous · Answer

no thank you for your input  @bookworm14