is there someone ...needed some help.
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Answered by
3
Answer:
Step-by-step explanation:here's your answer
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Answered by
9
Answer:
18
Step-by-step explanation:
The sum of the digits of a two-digit number is 9.
Let the digit of 10 be .
And let the digit of 1 be .
∴
Nine times this number is twice
the number obtained by reversing the order of the digits.
'This number' means .
'The number obtained by reversing the order of the digits' is .
Substitute .
equals
.
equals
.
∴ , thus
∴ The number is 18.
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