Question

what is the mathematical expressions of The ratio of –1 and a number?

Answer 1

Answer:

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Answer 2

$-1:x$ is the mathematical expression of the ratio of -1 and a number

Step-by-step explanation:

• x is a variable that can be used to represent the unknown number.

• The ratio can be expressed as a fraction so writing the ratio as a fraction gives $-\frac{1}{x}$

• The ratio can be written as two numbers that can be split in between colon.

• $-1:x$ is the mathematical expression of the ratio of -1 and a number.