manny2275
17.03.2021 •
Mathematics
Are ar
The marks of a student
student in written
and oral tests in subject A, B and c
follows. The written test marks
out of 75 and the oal test marks are out!
of 25. Find the weighted mean
in written test taking the marks in oral
as weight. The marks of written test and
and
of the marks
fest
oral test respectively
as follows : 27, 24,43
and 5, 10, s.
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Ответ:
Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!
cutt.ly/UzDInDt
Ответ:
We get -7x -3x = -10x and -10x+8x = -2x
then we get -2x + 2 = -8
-2x = -10
x = 5