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x=0.777...10x=7.77...9x=10x-x=7
9x=7so x=7/9so x=0.777...=7/9

This problem can be solved by using algebra and rearranging as follows:

Let x = 0.545454...
Then 100x = 54.545454...

If we then subtract x from 100x we g...

caro Giulio,Oggi ti vorrei raccontare come funziona la mia scuola. Le lezioni iniziano ogni mattina alle 8:30, e la giornata termina alle 16. Studio molte materie diverse: italiano, inglese, matematica, s...

v² =u²+2asv²-u²=2asa=(v²-u²)/2s as required

This sort of question would usually be a 5 mark question. Speciation is the process of forming a new species. The first stage is when a population is geographically separated so they can no longer interbr...