zitterkoph
12.08.2020 •
Mathematics
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Answers on questions: Mathematics
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Ответ:
Step-by-step explanation:
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Ответ:
Below
Step-by-step explanation:
You should now that:
● (m/n)^(1/2) = √(m/n)
So:
● (49/64)^(1/2) = √(m/n)
You shoukd now also that:
● √(m/n) = √m / √n
So:
● √(49/64) = √49/√64
Notice that 64 = 8^2 and 49 = 7^2
● √49 / √64 = √(7^2)/√(8^2) = 7/8
So the answer is 7/8
Ответ:
well,suppose the number of boy is x,then the number of girl is y=x+7,then the number of girls and boys is 2x+7=35.so x is 14.it means the number of boy is 14,girl is 21.