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Home Q & A Board Science-Related Homework Help Mathematics
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sebert sebert
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12 years ago
Below is a magic square where the sum of the three numbers in each row, column and diagonal are the same.  Find all of the missing numbers.

w15x
3y19
17z9
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#1
Educator
12 years ago
Excellent question, the solution is attached Slight Smile
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#2
Valued Member
12 years ago
you have to find values of unknown variables
w ,x,y,z
yoi can make four equations and then you can deduce the value of these unknown variables.

like, for the first equation, you write
sum of elements in column 1 equals sum of elements in column 2 or whatever rows or columns you want.
 
you can compute values of unknown variables by making equations by making use of the fact that sum is constant whethee it ia taken along a row or a colimn or diagonally.
I don't feel like riding until everything blurs.

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