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Question #794b6

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Akazukin 赤ずきん · Stefan V.

Nov 6, 2017

$210$ $210$ words.

Explanation:

$120$ $120$ words per minute can be expressed as $2$ $2$ words per second because there are $60$ $60$ seconds in a minute, and

$\frac{120 words}{60 seconds} = \frac{2 words}{second}$ $("120 words")/("60 seconds") = ("2 words")/("second")$

$1.75 minutes \times 60 seconds = 105 seconds$ $"1.75 minutes" xx "60 seconds" = "105 seconds"$

If Dorothy types $2$ $2$ words per second, then in $105$ $105$ seconds, she will type $210$ $210$ words.

$\frac{2 words}{second} \times 105 seconds = 210 words$ $"2 words"/"second" xx "105 seconds" = "210 words"$

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