Question

Jolie can read around 14 sentences per minute of her current novel. She wants to finish her reading before the movie comes out next week. If she has 17 pages left to read and each page has about 120 sentences, how many hours should Jolie set aside to complete her reading? Show your work to receive full credit.)

Answer 1

First of all, find how many sentences are in 17 pages. If in one page there are 120 sentences, in 17...

17*120 = 2040 sentences.

Now, she can read 14 sentences in one minute, how many minutes to read 2040 sentences?

2040 : 14 = 145,71 minutes (about 146 mins).

So, in an hour there are 60 minutes

146 : 60 = 2,42 hours (about 2,5)

But you can also convert 145,71 mins = 2 hours and 25 mins.

Answer 2

Let's start off by finding how many sentences Jolie has left to read. We know that there are 120 sentences on a page and she has 17 pages left.
120*17=2040
She has 2040 sentences left to read.
Now, let's calculate how many hours it will take her to finish her reading. We know she reads 14 sentences in a minute and there are 60 minutes in an hour. 
14*60=840
She will read 840 sentences in an hour.
Now, we will divide 2040 by 840 to find how many hours it will take for her to finish reading.
2040/840= 2.43
It will take Jolie approximately 2.43 hours to finish her reading.