Question

She has Read -2b+78 pages out of 10b+3 pages Dose she have 12b-75 lealse

A) She has 5b-75 pages left
B) She has -12b+75 pages left
C) She has -12b-75 pages left
D) She has 12b-75 pages left to read.

Answer 1

To find the number of pages left to read, we subtract the pages read (-2b+78) from the total pages in the book (10b+3), resulting in 12b-75 pages left, which corresponds to option D.

Step-by-step explanation:

The question is about finding the number of pages a student has left to read from a book. The total number of pages in the book is given as 10b+3, and the number of pages already read is -2b+78. To find the number of pages left, we need to subtract the pages read from the total number of pages:

Total pages in the book: 10b + 3

Pages read: -2b + 78

To find the number of pages left, calculate: (10b + 3) - (-2b + 78) which simplifies to:

• 10b + 3 + 2b - 78
• 12b + 3 - 78
• 12b - 75

Therefore, the number of pages left to read is 12b - 75, which matches option D from the choices provided.