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If m and r are two numbers on a number line, what is the value of r?

1. The distance between r and 0 is 3 times the distance between m and 0.
2. 12 is halfway between m and r.

Answer is E. How?

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erdnah: Senior | Next Rank: 100 Posts; Posts: 65; Joined: Tue Jun 12, 2007 12:57 am

by erdnah » Mon Aug 27, 2007 10:00 pm

there are two solutions, one is one the negative side of the number line

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