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Let f(x)= x/5 + 1 . Find f^-1(x)
f^-1(x)= 5(x-1)
Answered by Ella C. •
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A t-shirt is in two shops, both of which has it on sale. In shop A, the t-shirt originally cost £15, but has been reduced by 30%. In shop B, it used to cost £17 and has been reduced by 40%. In which shop is the t-shirt now cheaper, and by how much?
Simplify- (8/27)^(2/3)
From June 2015 Edexcel paper: Solve 7x + 8 = 2x – 3
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