Traditional Culture Encyclopedia - Photography and portraiture - Sixth grade math, please help me, there will be a big reward!
Sixth grade math, please help me, there will be a big reward!
So Xiaomi went to Beckham's house and demanded: 50×2/3= 100/3 (minutes).
So Beckham walked the whole distance every minute: 1/50.
Xiaomi walks the whole distance every minute: 3/ 100.
So the elapsed time is:1÷ (1/50+3/100) = 20 (minutes).
2. Because one-third of Beckham's income is equal to one-half of Xiaomi's income, the quantitative ratio of the two is (inverse ratio):
1/2: 1/3=3:2
So Beckham has: 25×3/3+2= 15 (Ben)
Xiaomi has: 25- 15= 10 (Ben)
3. If you read 15 again, the content you read accounts for 2/3+2=2/5 of the whole book.
Now I have read a quarter of the book, so 15 accounts for 2/5- 1/4=3/20.
The whole book is: 15÷3/20= 100 (industry)
I wish you progress in your study! ~^_^
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