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7 November, 11:46

An electrician has a spool of wire that is 200 m long. she needs four pieces of wire measuring 42.3 m, 37.8 m, 55.6 m, and 35.7 m. about how much wire will be left on the spool after she finishes her job? give your answer with the appropriate precision.

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  1. 7 November, 11:54
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    She needs exactly 42.3m + 37.8m + 55.6m + 35.7m = 171.4m for accomplishing her job, so there will be 28.6 m (200m-171.4m) of wire after she finished her work.
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