jaxonisafarthead
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Alberto sanded a wooden floor with his electric sander at a constant rate. Suppose he sanded 40 1/2 square feet of floor in 3/5 hours. How large an area would he have sanded in 1 hour?

Respuesta :

hnori22003

[tex] \frac{40 \frac{1}{2} }{ \frac{3}{5} } = \frac{x}{1} \\ [/tex]

[tex] \frac{ \frac{81}{2} }{ \frac{3}{5} } = x \\ [/tex]

[tex]x = \frac{81}{2} \div \frac{3}{5} \\ [/tex]

[tex]x = \frac{81}{2} \times \frac{5}{3} \\ [/tex]

[tex]x = \frac{405}{6} \\ [/tex]

[tex]x = 67.5[/tex]

Or

[tex]x = \frac{135}{2} \\ [/tex]

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