On a hike, Peter and Jamie walked $3 \frac{1}{8}$ $3 1/8$ hours at $2 \frac{1}{2}$ $2 1/2$ miles per hour. How far did they walk?

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On a hike, Peter and Jamie walked $3 \frac{1}{8}$ $3 1/8$ hours at $2 \frac{1}{2}$ $2 1/2$ miles per hour. How far did they walk?

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Answer 1 · 2016-03-27T02:44:27

$\frac{75}{16}$ $75/16$ or $4 \frac{11}{16}$ $4 11/16$ miles

Explanation:

Using the equation, $D = r t$ $D = rt$ where $D$ $D$ is distance, $r$ $r$ is rate, and $t$ $t$ is time.

$D = (2 \frac{1}{2}) (3 \frac{1}{8})$ $D = (2 1/2)(3 1/8)$
Rewrite fractions from mixed fractions to improper:

$D = (\frac{3}{2}) (\frac{25}{8})$ $D = (3/2)(25/8)$
Multiply straight across:

$D = \frac{75}{16}$ $D = 75/16$
Convert to mixed fraction if you want, 16 goes into 75 4 times with a remainder of 11 so:
$D = 4 \frac{11}{16}$ $D = 4 11/16$

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On a hike, Peter and Jamie walked $3 \frac{1}{8}$ $3 1/8$ hours at $2 \frac{1}{2}$ $2 1/2$ miles per hour. How far did they walk?

1 Answer

Explanation:

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