3 years ago

when amber does her math homework, she finishes 10 problems every seven minutes. how long will it take for her to complete 35 pr

oblems?

1 answer:

8 0

$\bf \begin{array}{ccll}
problems&minutes\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
10&7\\
35&m
\end{array}\implies \cfrac{10}{35}=\cfrac{7}{m}\implies m=\cfrac{35\cdot 7}{10}$

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