<PRE><B>Question 829351</B>
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x = price per gum
y = price per sucker
z = price per jellies
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4x + 10y + 10z = 39.60
8x + 2y + 5z = 24.90
9x + 2y + 8z = 33.20
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copy and paste the above linear system in standard form into this matrix-method solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = price per gum = $1.40
y = price per sucker = $1.10
z = price per bag of jellies = $2.30
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system matrix
4 10 10
8 2 5
9 2 8
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inverse of system matrix
-0.032258065 0.32258065 -0.16129032
0.10215054 0.31182796 -0.32258065
0.010752688 -0.44086022 0.38709677
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determinant of system matrix = -186
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Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
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Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
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Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php</PRE>