wdymRachel411
19.03.2021 •
Mathematics
ravi gave 60% of his stamp collection to his brother. He sold 20% of the remaining amount. what percent of his collection did he sell?
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Ответ:
12.94%
Step-by-step explanation:
r = 100(1/2)^(d/5) = 100((1/2)^(1/5))^d ≈ 100(.87055)^d
The daily decrease is 1 - 0.87055 = 0.12944 ≈ 12.94%