Question

The rational number that does not have a reciprocal is _____________. If the ones digit of a number is 0 or 5, then it is divisible by __________.

Answer 1

Answer:

The rational number that does not have a reciprocal 0 because reciprocal of 0 is undefined. A number is divisible by 5, if its ones digit is 0 or 5.

Hope this helps you.

Answer 2

Answer:

If the ones digit of a number is 0 or 5 then it is divisible by 5.

Step-by-step explanation:

eg. 20=5×4,25=5×5