Library reader fee

Forty percent of all library readers have already paid the annual reader fee, so the remaining 264 have to pay the fee. How many readers does the library have?

Final Answer:

n =  440

Step-by-step explanation:

q=40%=10040=52=0.4  q n+264=n 0.4 n+264=n  0.6n=264  n=0.6264=440  n=440



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