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Un article trouvé pour ce sujet.
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A railway cut |
2009-01-30 |
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Jean pose la question :
A railway cut 200ft. long and 30ft. wide at the bottom is made with sloping sides, which are 80ft. and 60ft. in length. The 80-ft. side is inclined 45 degrees and the other side is 35 degrees to the horizontal. Find the cost of removing the earth at $2 per load, if the trucks have capacity of 4cu. yd.
Penny Nom lui répond. |
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