Which number produces a rational number when multiplied by 1 over 5

The answer is -2/3

Step-by-step explanation:

A rational number is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.

Remember few things,

a rational number times a rational number=rational number

an irrational number times a rational number=irrational number

The number which produces a rational number when multiplied by 1/5 is -2/3.. It is not an irrational number but a fraction...

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000

idk

step-by-step explanation: