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Maths
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How would I solve this set of simultaneous equations using the elimination method?

Solve the following equations for x and y:

x + 2y = 4

2x + 3y = 7

We are going to solve this using the elimination method. This means that we are going to eith...

JU
Answered by Jasmine U. Maths tutor
4874 Views

How do you work out the old price of an item having been given the new price after a specified percentage change?

These problems can be worked out using the equation:
new = old x multiplier

Where:
new: is the new price of an item
old

RT
Answered by Rachael T. Maths tutor
29313 Views

How do you go about rearranging equations where the required subject appears on both sides? Such as making x the subject of 7x + a = 3x + b.

To rearrange any equation, you must always do the same to both sides.
If you take a number from one side, you must also take it from the other. If you divide a side by one number you must divide ...

RT
Answered by Rachael T. Maths tutor
22134 Views

Find the area encompassed by y=(3-x)x^2 and y=x(4-x) between x=0 and x=2.

This is an integration question.
The limits have been provided.

Firstly find the integral for the first curve
int{x(4-x)}dx
int{4x-x2}dx
2x2-x...

AD
Answered by Anthony D. Maths tutor
3806 Views

How do I multiply 2 matrices?

To multiply two matrices we need to name them A and B.

If for example we have 2 2X2 square matrices we know this will create a 3rd 2x2 martix

For this example we will use :<...

CR
Answered by Ciara R. Maths tutor
16573 Views

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