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two rectangles are similar. one has a length of 10 cm and a width of 8 cm, and the other has a width of 7 cm. find the length of the second rectangle. round to the nearest tenth if necessary
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Similar shapes means that you can place the sides into a fraction (ratio) and set them equal to each other: |dw:1383092438575:dw| \[\frac{x}{10} = \frac{7}{8}\]
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