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Tess drew a scale drawing of a house and its lot. She used the scale 7 millimetres = 1 metre. What scale factor does the drawing use?

Simplify your answer and write it as a ratio, using a colon.

 Oct 28, 2017
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1 meter =1,000 millimeters. So, the scale is:

7 mm:1,000 mm                      Divide both sides by 7

1 mm:142 6/7 mm - This is the scale that Tess used.

 Oct 28, 2017

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