Question

by what no. should we divide (-5)-1 so the resulting no. is (15)-1​

Answer 1

Answer:

SOLUTION

Expressing in fractional form, we get:

(−15)−1 = −1/15, → (a−1 = 1/a)

and

(−5)−1 = −1/5 → (a−1 = 1/a)

We have to find a number x such that

-115÷x=-15

Solving this equation, we get:

-115×1x=-15

-115=-x5

-5-15=x

∴x=13

Hence, (−15)−1 should be divided by 1/3 to obtain (−5)−1.

Step-by-step explanation:

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