Question

The product of two rational numbers is -21. If one of the number is
3/10
find the second number ?​

Answer 1

Answer:

Given

Xy=-21

X=3/10

3/10y=-21

Y=-70

Answer 2

Answer:

Question⤵

➡The product of two rational numbers is -21. If one of the number is 3/10 find the second number ?

Answer⤵

$let \: the \: second \: number \: be \: = x \\ therefore \\ x \times \frac{3}{10} = - 21 \\ x = - 21 \div \frac{3}{10} \\ x = - 21 \times \frac{10}{3} \\ x = - 70$

Hence the second number be (-70).

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