Question

Which number produces a rational number when added to 0.53?

Answer 1

Answer:

D produces a rational number

Step-by-step explanation:

Given: A rational number 0.53

To find : which number produces a rational number when added to 0.53

Solution : Now, we add each number one by one

Sum of any rational number with irrational number is always a irrational number

A. $\pi$ irrational number

$\pi+0.53$ =3.671393....= irrational number

B. $\sqrt{5}$ irrational number

$\sqrt{5}+0.53$=2.766...... = irrational number

C. $0.2645751311......$ irrational number

$0.2645751311......+0.53$ =irrational number

D. $5/7$ rational number

$5/7+0.53=0.71428571428571+0.53$ =1.2442857142857142857142857...= rational number  

as repeating numbers are also a rational number

Therefore, A,B,C are irrational number

and D is a rational number

Answer 2

The last one D because it is rational