Homework Help: math 115

Posted by Lea on Saturday, September 5, 2009 at 10:05pm.

1. a bedroom is 10ft. by 11ft. what is the perimeter? = 21ft. is this correct?
2. Find the prime factorization of the number 40 = 2X2X2X5= 40 is this correct?
3. perform the indicated operatio. 6 2/9 + 1 3/4 - 3 5/6 = 4 5/36 is this correct?

math 115 - Ms. Sue, Saturday, September 5, 2009 at 10:11pm
Numbers 2 and 3 are right.

For the first question, the bedroom has four walls --
(2 * 10) + (2 * 11) = 20 + 22 = ?

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