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Find from student what the first step is (get a or b in terms of the other).  

a = 2.8 x10^5 = 0.28x10^6

a + b = (0.28 + 1.6) x 10^6

= 1.88 x10^6

ii)

Know that a^x x b^y...

Rearranging equations to find x.

The first thing to do is to look at the 3. To 'get rid' of the 3 from the left we need to minus 3. Remember we must do the same to both sides so we also minus 3 fro...

The idea for this is simply counting the number of possibilities of each digit. Since the number is a multiple of 5, then we must have it finishing with 0 or 5, i.e., we have 2 possibilities for the last ...

It will mainly depend on your own interests, so there is no definite answer. In my opinion, the whole calculus section is probably the most significant part of the course as it will take up a significant ...

In this question we are as to solve this equation and therefore find the value of x. This means we need to isolate x to find a value for it. To do this we use the reverse rules for BIDMAS whereby the firs...