Answer: A. 40
Step-by-step explanation:
Answer:
10^4
Step-by-step explanation:
10×10×10×10=10,000, which is given number.
If the original number is ab it has a value of
10a+b when it is reversed it will have a value of 10b-a
10b+a-10a-b is the differences which is equal to
9b-9a
So the numbers must be divisible by 9
Answer:
50%
Step-by-step explanation:
10+4+2+4=20
10/20=0.5
Answer:
67.5 tiles
Step-by-step explanation: 18 times 15 equals 270, and 270 divided by 4 equals 67.5. So it will take 67.5 4in tiles to cover the room.
