Step-by-step explanation:
Let the number be (10 x + y)
Then, 10 x + y = 3 * (x + y) (given)
10 x + y = 3 x + 3 y
10 x - 3 x = 3 y - y
7x = 2 y
x = 2 y / 7 ( Eq. 1)
Also, 10 x + y + 45 = 10 y + x ( given)
10 x - x = 10 y - y - 45
9 x = 9 y - 45 ( Eq. 2)
Substituting the value of x from (Eq. 1) in (Eq. 2), we have:
9 * 2 y / 7 = 9 y - 45
(9 y ) - (18 y / 7) = 45
63 y - 18 y = 315
45 y = 315
y = 7
From (Eq. 1),
x = 2 * 7 / 7 = 2
So, the number is 10 x + y = (10 * 2) + 7 = (20 + 7) = 27
Sum of the digits = 2 + 7 = 9
9 * 3 = 27
Adding 45 to the number 27, we get 72. So, the digits get reversed.
Answer:
0.84
If you're looking for a percentage it'd be 84%
Step-by-step explanation:
The answer to this is Fixed Costs
It's J. Honestly I just picked a number for X and a number for C and solved it using each answer. J works.