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Ipatiy [6.2K]
3 years ago
5

Caroline's soccer practice starts at a quarter after 4 P.M. And ends at 5 P.M. How many minutes does her soccer practice last?

Mathematics
1 answer:
HACTEHA [7]3 years ago
3 0

Caroline's soccer practice starts at a quarter after 4 P.M. And ends at 5 P.M. How many minutes does her soccer practice last?

Answer:

A quarter after 4 P.M is 4:15

So soccer practice lasts 45 minutes.

Hope that helps and good luck

~May

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Answer:

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A=\left[\begin{array}{cccc}1&1&2&2\\-7&-3&5&-8\\4&1&1&1\\3&7&-1&1\end{array}\right]

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To apply the Cramer's rule, take the matrix A and replace the column assigned to the variable that you need to solve with the vector b, in this case, that would be the second column. This new matrix is going to be called A_{2}.

A_{2}=\left[\begin{array}{cccc}1&3&2&2\\-7&-3&5&-8\\4&6&1&1\\3&1&-1&1\end{array}\right]

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y=-\frac{158}{579}

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