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Q: Is a rational number multiplied a rational number rational?
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Can a rational number be multiplied by an irrational number and equal a rational number?

Only if the rational number is 0.


What numbers will produce a rational number when multiplied?

Any number will be a rational number when multiplied.0 multiplied by any real number is rational and so it will produce a rational number when multiplied.If x is any non-zero number (rational or not), then since it is non-zero, 1/x is defined and x*(1/x) = 1 which is rational. So any non-zero number will produce a rational number when multiplied.Thus any number will produce a rational number when multiplied.


What number produces a rational number when multiplied by .5?

Every rational number does.


What number produces rational numbers when multiplied by 5?

Every rational number does.


Which numbers will produce an irrational number when multiplied by 0.5?

Any irrational number multiplied by 0.5 will remain irrational. Any rational number multiplied by 0.5 will remain rational.


Is an irrational number multiplied by a rational number irrational?

Yes, unless the rational number is 0.


What is the product of a rational number multiplied by itself?

It is the square of the rational number.


What number will produce a rational number when multiplied by 0.5?

Any and every rational number.


Can you add irrational number and a rational to get a rational number?

If an irrational number is added to, (or multiplied by) a rational number, the result will always be an irrational number.


What number multiplied by 1 divided by 5 makes it rational?

Any already rational number


Which number can be multiplied to a rational number to explain that the product of two rational numbers is rational?

It must be a generalised rational number. Otherwise, if you select a rational number to multiply, then you will only prove it for that number.


Whether a rational number multiplied by an irrational number gives an irrational number?

rational * irrational = irrational.