SOLUTION: A man is digging a hole and standing in it. He is 5 feet 10 inches tall. When we come upon him he tells us that he is one-fourth done and that when he is finished, the top of his h

SOLUTION: A man is digging a hole and standing in it. He is 5 feet 10 inches tall. When we come upon him he tells us that he is one-fourth done and that when he is finished, the top of his h

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Question 100083: A man is digging a hole and standing in it. He is 5 feet 10 inches tall. When we come upon him he tells us that he is one-fourth done and that when he is finished, the top of his head will be three times as far below ground as it is now above ground. How deep will the hole be when finished?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
3*(70-(d/4))=d-70 ... 210-(3d/4)=d-70 ... 280=7d/4 ... 160=d
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