say that x = 0.888888888... then 10x = 8.8888888... so 10x - x = 8.88888 - 0.88888 therefore 9x = 8 and x = 8/9 hope it helps :)
10x + (8-x) = -19 10x + 8 = x - 19 10x = x - 27 9x = 27 x = 3
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1-10x = 81 -10x = 81-1 -10x = 80 x = -8
x2-10x = 0 x(x-10) = 0 x = 0 or x = 10
The fraction to 0.8888... is:Let x = 0.88888888888....10x = 8.8888888888888...x = 0.8888888888888...9x = 8x = 8/9
say that x = 0.888888888... then 10x = 8.8888888... so 10x - x = 8.88888 - 0.88888 therefore 9x = 8 and x = 8/9 hope it helps :)
Presumably you mean 0.1 recurring..... if x=0.11111111..... 10x=1.11111111..... so 10x-x=9x=1 9x=1 so x=1/9
10x = 4.44... x = 0.44... 9x = 4 x = 4/9
Changed into what? A fraction? Assuming you mean 0.55555 recurring, then: Let x = 0.55555.... => 10x = 5.5555.... Then 10x - x = 5.5555.... - 0.55555... => 9x = 5 => x = 5/9
To turn 0.5 repeating into a fraction, we can represent it as a geometric series. Let x = 0.5 repeating. Multiplying x by 10, we get 10x = 5.5555... Subtracting x from 10x, we have 10x - x = 5.5555... - 0.5555..., which simplifies to 9x = 5. Dividing both sides by 9, we get x = 5/9. Therefore, 0.5 repeating can be expressed as the fraction 5/9.
-10x = x-33 -10x-x = -33 -11x = -33 x = 11
Depends on the value of x if x is 1 then 10x + 20 = 30 if x is 2 then 10x + 20 = 40 if x is 3 then 10x + 20 = 50 if x is 4 then 10x + 20 = 60 if x is 5 then 10x + 20 = 70 if x is 10 then 10x + 20 = 120 And so on
10x + (8-x) = -19 10x + 8 = x - 19 10x = x - 27 9x = 27 x = 3
Let the fraction be x. Then x = 0.1555... As one digit repeats multiply both sides by 10 to give: 10x = 1.555... Now subtract the value of x from both sides: → 10x - x = 1.555... - 0.1555... → 9x = 1.4 Multiply both sides by 10 to remove the decimal point from the right hand side, and find the value of x as a fraction: → 90x = 14 → x = 14/90 = 7/45
To convert a decimal to a fraction one needs to know what the figure relates to.... is it 16.9 out of X. If it is then you need to multiply both the number in question and the X by enough 10s to dispose of the decimal point. One 10 will give 169 and 10X. Now we need to make 169 the numerator and 10X the denominator of our fraction.... the numerator is the number above the line and the denominator is the number below the line. 169/10X If it is possible, the fraction can then be simplified by dividing both the top and bottom by any common factors... as the only factors of 169 are 13 and 13, then if 10X is divisible by 13 the fraction can be simplified, otherwise it must stay as it is.
Way 1Let, x be 0.7777......... Now, 10x=7.777777.......=> 10x=7+0.777......=> 10x=7+x=> 9x=7=>x=7/9Way 2x = 0.7777... 10x = 7.7777...-1x = -.7777...9x = 7.0 = 79x = 7÷ 9 ÷97- = 0.7777...9Either, way, the answer is 0.7777... is equal to 7/9.