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how do you convert repeating decimals into a fraction?

first you let the given number equal xeg x = 0.8989898989. equation 1then look at the decimal and figure out which number is repeating. here it is 89 a two digit numberso we multiply x and the decimal by 100...
RS
Answered by Roman S. • Maths tutor
3764 Views

Find the x co-ordinates where the curve y=x+1 and y= x^2 +1 cross?

As they both equal y these 2 terms can be equated to each other.x+1 = x^2+1We can re-arrange this new equation, and solve for x.This equals: 0 = x^2 - xsolve for x:0 = x(x-1)so x = 1, 0.
MB
Answered by Michael B. • Maths tutor
3240 Views

Solve the Simultaneous Equation: 7x + 8y = 32, x - 4y = 8

7x + 8y = 32 (let this be equation [1])x - 4y = 8 (let this be equation [2]) Make x the subject in equation [2] => x = 8 +4y (let this be equation [3])Sub [3] into [1] 7x + 8y = 32 => 7(8 + 4y) +8y = 3...
BC
Answered by Bradleey C. • Maths tutor
4631 Views

( 9x3) + (18 /3)

(9 x 3) + (18 / 3) BIDMAS B rackets I ndices D ivide M ultiply A dd S ubtract Brackets first(9 x 3) = 27(18 / 3) = 6 Now add27 + 6 = 33
SB
Answered by Sarah B. • Maths tutor
3630 Views

Factorise x^2 +2x+1 to the form (x+a)(x+b)

To factorise a quadratic of this form find a pair of numbers which multiply to produce the last term and add to make the middle term.In this case 1x1 = 1 and 1+1=2 so a and b will be the same number.(x+1)(x+1)
MA
Answered by Mohammed A. • Maths tutor
3135 Views