Question #2cc36

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Question #2cc36

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Answer 1 · 2017-06-01T18:55:37

$45$ pages

Explanation:

Since the questions asks for the answer in minutes, we have to convert $1/2$ hour to minutes. We know that there are $60$ minutes in $1$ hour, so it follows that there are $30$ minutes in $1/2$ an hour.

Mother is reading at a pace of $30$ pages in $30$ minutes; so that's $1$ page a minute. Therefore, the answer is $45$ pages.

In general, you would use ratios or proportions to solve these kind of problems. We can think of the problem as:

30 pages in 30 minutes AS $x$ pages in 45 minutes:

$30/30=x/45$

We could cross multiply.

$30x=(30)(45)$

Finally, divide both sides of the equation by $30$ :

$x=45$ pages

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Question #2cc36

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