Question 824014: Please help me solve the following questions.
I have upload the image to >>> http://oi43.tinypic.com/mcyfk7.jpg <<<
Sorry, i cant draw in table here.
Thanks..
Answer by josgarithmetic(39617)   (Show Source):
You can put this solution on YOUR website! It seems a linear algebra problem. Six students, six different questions, all asked of every student. Each question is of a different point value than other questions. The point value of each question is a variable, and you have six variables.
A matrix might be like this:
1, 1, 0, 1, 1, 0, 26
0, 1, 1, 0, 0, 1, 21
0, 0, 1, 1, 1, 1, 32
1, 1, 0, 1, 0, 1, 26
1, 0, 1, 0, 1, 0, 21
Unfortunately, the last row in the reference does not give the total points as known so you only have FIVE equations; not six.
I'd rather resort to software; regardless of any skill within linear algebra. Try the purdue website's matrix calculator or meta-calculator site.
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