Answer:
52
Step-by-step explanation:
Solution:
Let the original number be x .
As per the problem I took a number, wrote a 9 to the right of it,
So we have x9
Again added the doubled original number to the result.
x9+2x
The resulting sum is 633. so we can write
Hence the original number is 52.
Hope this is help full
15.5
1.5-4+13
2.5+13
the board would be 4.85 feet
7/16
3/4*7/12=21/48=7/16