Question

By what number should -8^-1 be multiplied to get -10^-1​

Answer 1

The required number is 0.8.

Step-by-step explanation:

To find : By what number should $-8^{-1}$ be multiplied to get $-10^{-1}$ ?

Solution :

Let the number be 'x'.

According to question,

$-8^{-1}\times x=-10^{-1}$

$x=\frac{-10^{-1}}{-8^{-1}}$

$x=\frac{8}{10}$

$x=0.8$

Therefore, the required number is 0.8.

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Answer 2

Answer:

-4/5

Step-by-step explanation:

Now (-8)^-1 = -1/8

And (10)^-1 = 1/1O

Right?

So,

-1/8 * X = 1/10

X = 1/10/-1/8

X = 1/10 * -8/1

X = -8/10

Now we need to simplify this.

= -8/10 divide by 2 on numerator and denominator

= -4/5

(X is the number which we need to find to multiply it, so that we get 1/10)

Check-

-1/8 * -4/5 = 1/10

4/40 = 1/10

simplify 4/40 to 1/10

1/10 = 1/10

Thank you