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03.02.2020 •
Mathematics
If a certain number is added to the numerator and denominator of 8/11, the result is 6/7. find the number.
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Ответ:
x = 10
Step-by-step explanation:
8 + x = 6
11 + x 7
Cross Multiply
6(11 + x) = 7(8 + x)
66 + 6x = 56 + 7x
10 = x
Ответ:
2)an=90-4(n-1)
3)allens grades will be 62 after 8th quiz. He will not be on the team