jmm6115 jmm6115

18-03-2018
Mathematics

contestada

A particular computer takes 13 minutes to download a 39-minute TV show. How long will it take the computer to download a 2-hour movie?

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jdoe0001 jdoe0001

18-03-2018

since 2 hours is 120 minutes, then

[tex]\bf \begin{array}{ccll} \stackrel{download}{minutes}&\stackrel{show}{minutes}\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 13&39\\ x&120 \end{array}\implies \cfrac{13}{x}=\cfrac{39}{120}\implies \cfrac{13\cdot 120}{39}=x[/tex]

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