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Solve the Simultaneous equation: 4x+y=25, x-3y=13

Firstly, try and make one of the variables (x or y) the same in both equation, in this instance because we have a positive and negative y if we add them, they will cancel out. Therefore multiply the first eq...
AK
Answered by Anas K. • Maths tutor
4945 Views

How do I write a good introduction?

Your introduction doesn't need to be revolutionary - all it needs to do is tell me your argument. As a marker, I want your argument summarised for me so that I can look for it when I read the rest of your es...
MO
Answered by Molly O. • English tutor
3197 Views

What is the difference between fiscal and monetary policies?

Both fiscal and monetary policies are demand-side policies used by authorities to either boost or decrease the aggregate demand of the economy. Aggregate demand (AD), consisted of consumption (C), investment...
DA
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Which test for convergence is the best for which series?

In IB Calculus Option you are introduced to number of different tests. They are Divergence Test, Comparison Test (simple and limit forms), Absolute Convergence Test, Alternating Series Test, Ratio Test and I...
JW
3259 Views

Three girls and four boys are seated randomly on a straight bench. What is the probability that the boys sit together and the girls sit together.

To calculate the desired probability we need to calculate the number n of arrangements of the kids such that the girls sit together and the bous sit together and then calculate the total number m of arrangem...
JW
Answered by Jakub W. • Maths tutor
12251 Views