Question

by what number should –91/5 be multiplied to get 13?​

Answer 1

Step-by-step explanation:

-91/5×x=13

-91/5×13= x

-91/65=x

Answer 2

Answer:

$-\frac{5}{7}$ is the required number which should be multiplied by $-91/5$ to get the number $13$.

Step-by-step explanation:

Let the required number be $x$.

According to the question,

The number -91/5 should be multiplied by the number $x$ to get 13,

Mathematically,

⇒ $-\frac{91}{5} \times x=13$

Rewrite the expression as follows:

⇒ $-\frac{91x}{5}=13$

Multiply both the sides by the number $5$ as follows:

⇒ $\left(-\frac{91x}{5}\right)\times 5=13\times 5$

Simplify as follows:

⇒ $-91x=65$

Divide both the sides by the number $91$ as follows:

⇒ $-\frac{91x}{91} =\frac{65}{91}$

Simplify as follows:

⇒ $-x=\frac{65}{91}$

⇒ $-x=\frac{5}{7}$ (Since $13\times 5 =65$ and $13\times 7=91$)

Now, multiply the equation by the negative $(-)$ operation as follows:

⇒ $-(-x)=-\frac{5}{7}$

⇒ $x=-\frac{5}{7}$ (Using sign rule, $(-)\times (-)=(+)$)

Therefore, the required number should be $-\frac{5}{7}$.

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