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Maths
GCSE

Re-arrange [4x+ 9t + 8s= 3g] to make x the subject of the formula

First we need to get everything that is not x on to one side. This will then leave us with 4x=3g- 8s-9t. Now we need to remove the coefficient of x which will result in x=1/4(3g-8s-9t)- as we have x on it...

VP
Answered by Vaidik P. Maths tutor
2685 Views

The equation the line L1 is y=3x-2 and the equation of line L2 is 3y-9x+5=0. Show that these two lines are parallel.

Two lines are parallel if they have the same gradient. The general equation for a straight line is y=mx+c, where m is the gradient and c is the y-intercept. If these lines are parallel, then m will be the...

ZM
Answered by Zoe M. Maths tutor
8542 Views

How can you solve an equation with unknowns in the denominators?

First, you should make it so that each fraction has a common denominator. This will usually be done by multiplying the numerator and the denominator of the fraction by the same expression (this is accepta...

JR
Answered by Joshua R. Maths tutor
2809 Views

express the number 84 as a product of its prime factors

84/2 = 4242/2 = 2121/3 = 77 /7 = 1therefore answer is 2x2x3x7

HB
Answered by Hannah B. Maths tutor
6986 Views

How can I use the Pythagoras' Theorem to work out the length of a missing side of a triangle?

We have the triangle ABC. AB = 3 BC = 4 AC = ?
By inputting these numbers into the Pythagoras' Theorem, we can out the length of the missing side (AC).
a2 + b2 = c2

ZE
Answered by Zhane E. Maths tutor
2892 Views

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