Math, asked by zzloyalzz, 11 months ago

who want ☆50 points☆​

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Answers

Answered by allison2134
0

2.Let x = 0.7Bar

⇒ x = 0.777.....(1)

Multiplying (equation 1) by 10 

⇒ 10x = 7.7..... = 7.777 ......(2)

Subtracting (1) from (2)

⇒ 10x - x = 9x

 ⇒ 7.777 - 0.777 = 7    

⇒ 9x = 7 

⇒ x = 7/9

Let y = 0.47Bar

⇒ y = 0.4747 ..............  ........(1)

Multiplying (equation 1) by 100 

⇒ 100y = 47.4747  ............(2)

Subtracting (eqn 1) from (eqn 2)

=> 100y - y = 99y

=>47.4747 - 0.4747 = 47

=>99y = 47

=>y = 47/99

Now,

0.7Bar = 7/9

and 0.47Bar = 47/99

0.6 = 6/10

6/10 + 7/9 + 47/99

Taking L.C.M. of the denominator and then solving it, we get.

⇒ (594 + 770 + 470)/990

⇒ 1834/990

⇒ 917/4959

Answered by Anonymous
53

hey mate here is ur answer..

☮️

2.Let x = 0.7Bar

⇒ x = 0.777...(1)

Multiplying (equation 1) by 10 

⇒ 10x = 7.7.. = 7.777 ...(2)

Subtracting (1) from (2)

⇒ 10x - x = 9x

 ⇒ 7.777 - 0.777 = 7    

⇒ 9x = 7 

⇒ x = 7/9

Let y = 0.47Bar

..(1)

Multiplying (equation 1) by 100 

⇒ 100y = 47.4747.(2)

Subtracting (eqn 1) from (eqn 2)

=> 100y - y = 99y

=>47.4747 - 0.4747 = 47

=>99y = 47

=>y = 47/99

now, ,

0.7Bar = 7/9

and 0.47Bar = 47/99

0.6 = 6/10

6/10 + 7/9 + 47/99

Taking L.C.M. of the denominator and then solving it, we get.

⇒ (594 + 770 + 470)/990

⇒ 1834/990

⇒ 917/4959

hopes its helps you..

answered by, advanced mod

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