Question

Question #2cc36

Answer 1

`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