No 10*pi is not a rational number because it can't be expressed as a fraction
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A non-zero rational number (10) multiplied by an irrational number (pi) is always irrational.
3.14 is a rational number pi is not. pi is not 3.14
No, it is not.
The product of two rational numbers, as in this example, is always RATIONAL.However, if you mean 10 x pi, pi is irrational; the product of a rational and an irrational number is ALWAYS IRRATIONAL, except for the special case in which the rational number is zero.
Minus pi. Or minus pi plus any rational number. Here is how you can figure this out (call your unknown number "x", and let "r" stand for any rational number):x + pi = r To solve for "x", simply subtract pi from both sides. That gives you: x = r - pi