Question

Represent 2.57 ( bar on 7) in the form of p/q where Q is un equal to 0.​

Answer 1

Answer:

14/5 check it with ur calculator

Step-by-step explanation:

Answer 2

2.57 ( bar on 7) in the form of p/q where Q ≠ 0 is  161/45

We can represent 2.57 ( bar on 7) in the form of p/q where Q is un equal to 0 as follows:

let x= 2.577777777777......

we have, 10x = 25.7777777777.......

we have, 100x = 257.7777777777.........

and let's subtract 10x from 100x

⇒ 100x - 10x = 257.7777777777......... - 25.7777777777.......

⇒ 90x =  232

⇒ x = 232/ 90

⇒ x = 161/45

Therefore, 2.57 ( bar on 7) in the form of p/q where Q ≠ 0 is  161/45

a number that can be represented in the form of p/q where q ≠ 0, is called a rational number.

so, 2.57 ( bar on 7) is a rational number that can be represented in the form of p/q where q ≠ 0 is equal to 161/45

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