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First we should consider how many positive integers less than 100 have digit sum equal to n. The answer should be relatively straight forward for this - it is n+1.For example, if n = 3 then we can have 03...
5x+11=(y+2)/2Best way to think about this is like its a normal equation where you're trying to find the value of x, just break it down into simple steps. The best thing to do first is to get rid of ...
This question is initially asking for the understanding tsunami formation process. It would be useful to provide a brief definition of a tsunami, so the examiner knows you have a clear idea of...
It is very common for A-level Art students who produce work which displays outstanding quality and technical skill to feel that their abilities are not reflected by their grades. This problem arises when ...
The best way to do well in maths, is to learn where things come from. Mastering the basics makes everything else much easier! To start, consider the product ruleTMAnswered by Tom M. • Maths tutor3063 Views
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