Top answers

How would you convert the decimal 0.125 into a fraction in its simplest form?

0.125 is the same as 125/1000. This is because we have to remove the decimal point before creating a fraction. So 0.125 times by 1000 is 125 and at this point the decimal point has been removed. But 125/1000...
TD
Answered by Tutor61277 D. • Maths tutor
227410 Views

Expand and simplify (6x+9)(4x+7)

Using the "crabs claw" or "parrot beak" method, draw lines linking the two brackets (demonstrated on whiteboard) 6x x 4x = 24x 2 6x x 7 = 42x 9 x 4x = 36x 9 x 7 = 63 Answer = 24x 2 + 42x ...
JG
Answered by Jenna G. • Maths tutor
5200 Views

How do you work out compound interest?

Check whether student can calculate simple interest, e.g. How much money would you have after 1 year if you have £50 and get 3% interest? (Ans: 50*1.03 = 51.50) Once this is understood get them to calculate ...
JW
Answered by Joanna W. • Maths tutor
4086 Views

Factorise fully the following: 12x^3 + 3x^2 + 15x

To factorise an equation entirely it is necessary to think of the commonality between all terms. In this case, not only 'x' is common in all the parts of the equation, but also '3'. Knowing this information ...
HB
Answered by Helena B. • Maths tutor
4877 Views

A metal Sphere of radius Ym is melted down and remade into a cylinder of the same volume with height Ym with circular ends of radius 3m, find Y

The sphere has radius Y, so the volume of the sphere is 4/3 (pi) Y 3 , The volume is the same for the cyclinder so we know the volume of the cylinder in terms of Y. Cyclinder volume = area of circle face x h...
JC
Answered by James C. • Maths tutor
3511 Views