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SpyIntel [72]
3 years ago
7

The positive two-digit integers x and y have the same digits, but in reverse order. Which of the following must be a factor of x

y
(A) 6
(B) 9
(C) 10
(D) 11
(E) 14
Mathematics
1 answer:
shusha [124]3 years ago
5 0

Answer: (D) 11

Step-by-step explanation:

Let the first digit x composed of ab and the second digit y composed of reversed of ab =ba

The sum of x and y will be

x+y = ab+ ba

x+y= (10.a + b) + (10.b +a)

x+y= 10a+b+10b+a

x+y= 11a+11b

By factorization

x+y= 11(a+b)

Therefore 11 is compulsory factor of x and y

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Step-by-step explanation:

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8 0
4 years ago
A 100-gallon fish tank fills at a rate of x gallons per minute. The function is F(x)=100/x. if the tank has been filling for 20
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The second graph is correct.

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Solution

Given the question in the image, the following are the solution steps to answer the question.

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