Respuesta :

The ratio tablet to computer is given by

[tex]\text{ratio}=\frac{\text{tablet}}{\text{computer}}=\frac{9.7\text{ inches}}{21\text{ inches}}=\frac{9.7}{21}[/tex]

This ratio must be preserved, then we have

[tex]\frac{\text{ wide tablet}}{\text{wide computer}}=\frac{9.7}{21}[/tex]

By substituting the given values, we have

[tex]\frac{\text{ wide tablet}}{21\text{ cm}}=\frac{9.7}{21}[/tex]

then the wide on the table is

[tex]\begin{gathered} \text{ wide tablet = 21}\times\frac{9.7}{21}cm \\ \text{ wide tablet = }9.7\text{cm} \end{gathered}[/tex]

which is equivalent to 97 milimeters because 1 centimeter has 10 milimeters. Then, the answer is option C.

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