In a two-digit number, the units digit is twice the tens digit. If the number is doubled, it will be 9 more than the number reve
rsed. Find the number. :) Thanks!
2 answers:
We know that the ones digit is 2x the tens digit. The number has to be two digits, so this leaves the options of 12, 24, 36, and 48.
Next, we double each number.
12 x 2 is 24
24 x 2 is 48
36 x 2 is 72
48 x 2 is 96
And subtract 9 from each of those. 15, 39, 63, and 87.
63 backwards is 36. The number you are looking for is 36. :)
10(2x)+x
21x is the original number
12x is the reversed number
24x is the reversed then doubled number
Set up an equation:
24x=21x+9
3x=9
x=3
The original number is 63 and the reversed number is 36, which then is 72 when doubled.
You might be interested in
I think the answer is 12 because 3 times 4 is 12
Answer:
1 inch = 2ft
Step-by-step explanation:
Answer:

Step-by-step explanation:







Answer:
it rise over run so put 2y on graph count down 4 and move right 1
Step-by-step explanation: