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 = 1/2u
u = 1/2t
t - u = 1/2

Answer 1

its the first 1 right

Answer 2

yes :)

Answer 3

Yup

Answer 4

`tens digit is one-half the units digit`

`tens digit ` = 't'
`is` = '='
`one-half` = '1/2'
units digit = 'u'

Answer 5

k