19-09-2017
Mathematics

contestada

a grading machine can grade 48 tests in 1 minute. How
long will it take the machine to grade 300 tests?

Respuesta :

jdoe0001 jdoe0001

19-09-2017

[tex]\bf \begin{array}{ccll} tests&minutes\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 48&1\\ 300&m \end{array}\implies \cfrac{48}{300}=\cfrac{1}{m}\implies m=\cfrac{300\cdot 1}{48}[/tex]

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