Question

Which situation could be represented by the open sentence 15 - 5 = p?

a. Stuart is reading a book that has a total of 15 chapters. He reads 5 chapters every day. How many days will it take Stuart to finish the book?
b. Stuart is reading a book that has a total of 15 chapters. He has already read 5 chapters. How many chapters of the book are left for Stuart to read?
c. Stuart is reading a book that has a total of 15 chapters. This book has 5 chapters less than the book Stuart read last week. How many chapters were in the book Stuart read last week?
d. Stuart is reading a book that has a total of 15 chapters. This is 5 times the number of chapters as the book Stuart read last week. How many chapters were in the book Stuart read last week?

Answer 1

Option B.

Explanation:

We need to find the situation that could be represented by the sentence 15-5=P.

Option A:

Stuart is reading a book that has a total of 15 chapters. He reads 5 chapters every day. How many days will it take Stuart to finish the book?

Let the number of days be d.

`15-5d=0`

Option B:

Stuart is reading a book that has a total of 15 chapters. He has already read 5 chapters. How many chapters of the book are left for Stuart to read?

Let the number of remaining chapters be p.

`15-5=p`

Option C:

Stuart is reading a book that has a total of 15 chapters. This book has 5 chapters less than the book Stuart read last week. How many chapters were in the book Stuart read last week?

Let the number of chapters in the book Stuart read last week be n.

`n-5=15\Rightaarow n=15+5`

Option D:

Stuart is reading a book that has a total of 15 chapters. This is 5 times the number of chapters as the book Stuart read last week. How many chapters were in the book Stuart read last week?

Let the number of chapters in the book Stuart read last week be n.

`15=5n`

Therefore. the correct option is B.