An air freight company has three types of aircraft which carry three types of cargo. The payload, in tons, is summarized in the table below. 
On Saturdays, the company must move 23 tons of mail, 16 tons of medical supplies, and 17 tons of freight. This system of equations can be represented by the matrix: 
. Reduce this matrix to calculate how many aircraft of each type should be used.
What will be an ideal response?
; 5 passenger planes, 1 transport plane, and 9 commuter planes.
Mathematics
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A. 
B. 
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D. 
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x - 
x = 3
A. {90} B. {-45} C. {-90} D. {45}
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Mathematics