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Rearrange the following, making c the subject: (3c + b)/2 = c + a

Rearranging is one of the trickier topics in GCSE maths, however as long as you follow it through step by step you shouldn't have a problem.

The question asks you to make 'c' the subject....

Answered by Olivia C. • Maths tutor

15790 Views

Sam uses 140g of flour to make 12 cakes. How much flour will Sam need to make 21 cakes?

This question can be difficult, because it involve a lot of words. This can make it confusing as to what information we really need to use - just work it through step by step.

Sam uses 14...

Answered by Olivia C. • Maths tutor

11821 Views

How do I do integration by substitution?

There are a number of integrals that we can evaluate directly, called elementary functions:integral[x dx] = x²/2 + Cintegral[cos(x) dx] = sin(x) + C...

Answered by Matthew T. • Maths tutor

5779 Views

What are the possible value(s) of x for the following: x^2 + 3x - 54 = 0

It is a quadratic equation and when factorised will be of the form (x +/- a) (x +/- b) = 0. We need to find 2 numbers, a and b, that add together to make the 3 for the 3x term and which are multiplied ...

Answered by Kate G. • Maths tutor

5313 Views

Bob lives 2km away from Alice and the school is 1km away from Bob. Alice sets off to meet Bob at 8am and she meets him at 8:15 and they carry on walking at the same pace. School starts at 8:20. Do they get to school on time? How early/late are they?

Many pupils struggle when maths questions that are given in a very wordy format. I feel these types of questions can be the most useful in testing mathematical concepts that the pupils have picked up in l...

Answered by Marcin K. • Maths tutor

4221 Views