Posted by **Anonymous** on Sunday, March 28, 2010 at 7:15pm.

A model train is a scale model created from actual measurements. The scale factor for HO or Half Zero model trains is 1:87. A typical engine is 50mm in height and 200mm in length. Determine the actual dimensions of the train engine. Help Please

- MATH -
**bobpursley**, Sunday, March 28, 2010 at 7:17pm
Waht is 87*50mm?

- MATH -
**Anonymous**, Sunday, March 28, 2010 at 7:18pm
4350mm

- MATH -
**Anonymous**, Sunday, March 28, 2010 at 8:34pm
9x² + 30x = 32

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