Question #2cc36

1 Answer
Jun 1, 2017

Answer:

#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