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Given that 7/9 = 0.77777777 (recurring) convert 0.27777777(recurring) into a fraction. Give your answer in the simplest form.

if 7/9 = 0.777777 then 0.0777777 must be equal to 7/90 as it is a tenth of the original number. 0.2= (2/10)(7/90) + (2/10) = 0.27777777 find the lowest common multiple: 90, then make the denominators of e...

NK
Answered by Nial K. Maths tutor
4580 Views

Solve algebraically the simultaneous equations x2 +y2 =25 and y – 3x = 13

Firstly, let's begin by rearranging the second equation so that we can get y on its own. Therefore we will get, y = 3x +13. Through substitution, we can do this:x2+ (3x +13)2= 25 . (...

TM
Answered by Tasmin M. Maths tutor
6119 Views

Find the x coordinate of the stationary points of the curve with equation y = 2x^3 - 0.5x^2 - 2x + 4

Firstly, to find the stationary points of a curve you must differentiate the equation of the curve. To do this each x component is multiplied by its current power and then the power is decreased by one. A...

BS
Answered by Bartosz S. Maths tutor
5364 Views

Insert a pair of brackets into this question to make it correct 2 + 5 x -6 = -42

(2+5) x -6 = 42

IO
Answered by Inumidun O. Maths tutor
3624 Views

Find two solutions to the quadratic equation x^2 + 2x - 15 = 0

Firstly, we need to find two numbers that multiply together to make -15 and sum together to make +2. We try a few numbers and find that the solution is -3 and 5, as -3 x 5 = -15 and -3 + 5 = 2.Next you in...

JG
Answered by James G. Maths tutor
3984 Views

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