The following table shows some data from a study on substance use among 10th graders in the United States and Europe.   Smoked Cigarettes Cigarette-Free Totals U.S. x y 12,000 Europe z w 98,000 Total   66,210 110,000 (a) The table leads to a linear system of four equations in four unknowns. What is the system?   Given that 40,510 more European 10th graders smoked cigarettes than U.S. 10th graders, find the missing data.

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A: To perform: - "operations on a linear system to arrive at an equivalent system"

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Q: The following table shows some data from a study on substance use among 10th graders in the United…

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Q: following

A: Please refer to the image below

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Q: The following table shows some data from a study on substance use among 10th graders in the United…

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Q: Consider the following system of linear equations. 9. 4. 4 4 3 1 6 7 3 5. z= 10

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Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.