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Kobotan [32]
3 years ago
7

A 2-gallon jug of water costs $8.64. What is the price per cup?

Mathematics
2 answers:
amid [387]3 years ago
4 0

Answer:

$0.27 a cup

Step-by-step explanation:

16 cups in a gallon so 32 cups in 2 gallons, so 8.64 divided by 32 = .27

natima [27]3 years ago
3 0

Answer:

.48

Step-by-step explanation:

16 cups in a gallon so 8.64 divided by 16 is .48

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EXPLANATION

For a matrix A of order n×n, the cofactor C_{ij} of element a_{ij} is defined to be


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   \begin{aligned} A=\begin{bmatrix} \bf 1 & \bf -6 & \bf -4\\ \bf 7 & 0 & -3 \\ \bf -9 & 8 & -8 \end{bmatrix} \implies M_{11} &= \text{det}\left(\begin{bmatrix} 0&-3 \\ 8&-8 \end{bmatrix} \right)  \end{aligned}


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   \begin{aligned} A=\begin{bmatrix} \bf 1 & \bf -6 & \bf -4\\ \bf 7 & 0 & -3 \\ \bf -9 & 8 & -8 \end{bmatrix} \implies M_{11} &= \text{det}\left(\begin{bmatrix} 0&-3 \\ 8&-8 \end{bmatrix} \right) \\ &= (0)(-8) - (-3)(8) \\ &= -(-24) \\ &= 24 \end{aligned}


so C_{11} = M_{11} = 24

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