It takes Mara 50 minutes to walk to her friend's house 1 2/3-miles away. What is her walking pace in miles per hour?

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Answer 1 · 2018-03-12T22:20:02

$2$ $2$ miles per hour

To find her walking pace in 'miles per hour', we need to divide the distance (in miles) by the time (in hours)

$speed = \frac{distance}{time}$ $"speed" = "distance"/"time"$

The time is given in minutes, but $50$ $50$ minutes = $\frac{50}{60}$ $50/60$ hours
$= \frac{5}{6}$ $=5/6$ hours

$1 \frac{2}{3} \div \frac{5}{6}$ $1 2/3 div 5/6$

$= \frac{5}{3} \times \frac{6}{5}$ $= 5/3 xx6/5$ miles per hour

$=cancel5/cancel3 xxcancel6^2/cancel5$

$=2$ miles per hour