Question

Bar
questions (Find in the decimal type
0.5 = 5bar
3.2 - 2 bar
0.35 =35bar
​

Answer 1

1:

x = 0.5... (1)

Multiply (1) by 10

10x = 5.5... (2)

Subtract (1) from (2)

==> 10x - x = 5

==> 9x = 5

==> x = 5/9

2:

x = 3.2... (1)

Multiply (1) by 10

10x = 32.2... (2)

Subtract (1) from (2)

==> 10x - x = 32 - 3

==> 9x = 29

==> x = 29/9

3:

x = 0.3535... (1)

Multiply (1) by 100

100x = 35.35... (2)

Subtract (1) from (2)

==> 100x - x = 35

==> 99x = 35

==> x = 35/99