Answer:
Rule of 9 : an integer is divisible by 9 if and only if the sum of its integers is divisible by 9.
Proof :
Let us consider a number x such that,
Where, 
are the the digits of the number x,
So, we can write,
Let,
Since, a number is in the form of 
, where k is an positive integer, is always divisible by 9,
⇒ 
are divisible by 9.
⇒ x-S is divisible by 9,
⇒ If S is divisible by 9 ⇒ x must divisible by 9,
Or if x is divisible by 9 ⇒ S must divisible by 9.
Hence, proved...
Answer:
I need a picture of the question because you are missing some parts of the question.
Answer:
5x^4 - 37x^3 - 6x^2 + 41x - 6
Step-by-step explanation:
The formula for the perimeter is 2L + 2W.
Since we know that L=10+W, we can substitute this into the equation.
2(10+W) +2W=124
20+2W + 2W=124
4W +20 = 124
4W=104
W=26
Therefore, the width is 26 inches.
Answer:
Step-by-step explanation:
I think it is Italy and Spain. I am not hundred percent sure but I think it is Italy and Spain
