Alex walked 1 mile in 15 minutes Sally walked 3,520 yards in 24 minutes in miles per hour how much faster did sally walk than Alex

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asked Dec 3, 2018 214k views

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Neshta · Answer 1 · 2018-12-09T22:07:40+0000

there are 3feet in 1yard, and there are 5280 feet in 1 mile... so let's use those

$\bf \cfrac{3520yd}{24min}\cdot \cfrac{3ft}{1yd}\cdot \cfrac{1mi}{5280ft}\implies \cfrac{3520\cdot 3\cdot 1mi}{24\cdot 1\cdot 5280min}\implies \cfrac{10560mi}{126720min} \\\\\\ \boxed{\cfrac{1mi}{12min}}$

Alex walked 1 mile in 15minutes, Sally walked the same 1mile in just 12minutes, 3 minutes faster than Alex

Alex walked 1 mile in 15 minutes Sally walked 3,520 yards in 24 minutes in miles per hour how much faster did sally walk than Alex

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