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zalisa [80]
3 years ago
15

How long will it take an object to travel 5 1/5 when it travels 8 2/3 miles per hour

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
6 0

let's first convert the mixed fractions to improper, and then proceed.


\bf \stackrel{mixed}{5\frac{1}{5}}\implies \cfrac{5\cdot 5+1}{5}\implies \stackrel{improper}{\cfrac{26}{5}}~\hfill \stackrel{mixed}{8\frac{2}{3}}\implies \cfrac{8\cdot 3+2}{3}\implies \stackrel{improper}{\cfrac{26}{3}}\\\\[-0.35em]\rule{34em}{0.25pt}\\\\\begin{array}{ccll}miles&hours\\\cline{1-2}\\\frac{26}{3}&1\\[0.8em]\frac{26}{5}&h\end{array}\implies \cfrac{~~\frac{26}{3}~~}{\frac{26}{5}}=\cfrac{1}{h}\implies \cfrac{26}{3}\cdot \cfrac{5}{26}=\cfrac{1}{h}\implies \cfrac{5}{3}=\cfrac{1}{h}


\bf h=\cfrac{3\cdot 1}{5}\implies h=\cfrac{3}{5}\impliedby \textit{36 minutes}

timama [110]3 years ago
3 0
I alkeast need 20 characters long.
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