Question

Which number produces a rational number when multiplied by 0.5?

Answer 1

C.

hope this helps :)

Answer 2

The right answer is c. 2.22

A rational number is a number that can be expressed as the quotient of two integers, that is, the mathematical equation that model this statement is:

$\frac{p}{q}$

where p and q are integers and q is non-zero. In the choices above, only 2.22 accomplishes with this condition because:

$2.22=\frac{111}{100}$

Therefore:

$2.22 \times 0.5=\frac{111}{50} \times 0.5 = \boxed{1.11=\frac{111}{100}}$

In conclusion, 1.11 is also a rational number