November 28, 2015

Homework Help: Math

Posted by Marie on Thursday, January 17, 2013 at 3:58am.

* How many different odd 3-digit numbers can be formed using the digits 1,2,3,4,5 if none the numbes have repeating digits?

* A bus having a seating capacity of 45 people is 80% occupied. When the bus stops one -third of the people get off and 3 people get on the bus. The bus is now______ % occupied?

* If x-1 is a prime number greater than 3, which of the following could be a prime number?
a)x^2 b)x c)x-2 d)x+1 e)x+2

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