Posted by **alisha** on Tuesday, April 13, 2010 at 9:17pm.

lara arranged the books in her bookshelf by size. 2/10 of the books were tall and 1/2 of the books were medeium sized. If 12 of the books were small, how manyu total books did she arrange?

- math -
**Ms. Sue**, Tuesday, April 13, 2010 at 9:21pm
2/10 + 5/10 = 7/10

(3/10)x = 12

x = 12/(3/10)

x = 12 * (10/3)

x = 120/3

x = ?

- math -
**alisha**, Tuesday, April 13, 2010 at 9:25pm
could you please explain how you got 5/10 and 3/10?

- math -
**Ms. Sue**, Tuesday, April 13, 2010 at 9:31pm
1/2 = 5/10

10/10 - 7/10 = 3/10

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