Posted by **james** on Wednesday, February 29, 2012 at 1:50am.

a textbook has 50 more than two times the number of pages as a workbook. combined, they have 230 pages. how many pages are in the textbook?

- math -
**Rose Bud**, Wednesday, February 29, 2012 at 2:22am
text book = 50 + (2 x Z)

let Z= workbook

textbook + workbook = 230 pages

[50+(2Z)] + Z = 230

50 + 3Z =230

3Z= 180

z= 60

Text book = 50 + 2Z

text book = 50 + 2(60)

Text book = 170

REMEMBER:

50 more, really means "plus 50" in an equation

2 time the number of pages a work book, really mean "2Z" where Z = work book

## Answer this Question

## Related Questions

- Math (sort of?) - Does anyone know how to get the special NY pages on an online ...
- Math - Four classmates are comparing the number of pages that they have read in ...
- Math - This needs to be worked backwards. Four classmates are comparing the ...
- math - if i have a book of 30 pages and i want to number each pages what will be...
- Algebra - Peter is reading a 193-book. He has three pages more than one fourth ...
- math - Peter is reading a 103 page book. He has read three pages more than one ...
- Math Elementary - Carol reads four times as many pages than John. They read 40 ...
- maths - 1) If I number the pages os a 36 page book, how many digits do I write? ...
- math - Johns vacation scrapbooks has 2 times as many pages as his school ...
- Algebra - Yancy wrote two novels that together contain 580 pages. His longer ...