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April 2, 2015

April 2, 2015

Posted by **gary** on Sunday, January 27, 2013 at 10:26pm.

2. If n is an integer, which of the following must be odd ?

A. 3n-5

B. 3n + 4

C. 4n + 10

D. 4n - 5

E. 5n + 7

- help? math ? -
**Reiny**, Sunday, January 27, 2013 at 10:47pm1. 1

2. To have an odd answer to an addition or subtraction , one number must be even the other odd.

looking at D), 4n is always even

so even - odd = odd

choice is D

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