math
posted by greg .
Toby is making a scale model of the battlefield at Fredericksburg. The area he wants to model measures about 11 mi by 7.5mi. He plans to put the model on a 3.25 ft by 3.25ft square table. On each side of the model he wants to leave at least 3 inches between the model and the table edges. What is the largest scale he can use? I need help!!! Please help me!!!! Thanks!!!

calm down, and take things one step at a time.
the model is 3.25 ft on a side. That's 39 inches.
a 3" border all around leaves 33" on a side for modeling.
The largest dimension (11 mi) must fit into 33 inches. That's 11mi/33in = 1/3 mi/in, or 1760 ft/in
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