A ladder hangs over the side of a ship anchored in a port. The bottom rung touches the water. The distance between rungs is 7" and the length of the ladder is 12' (108"). The tide is rising at the rate of 6" each hour. When will the water reach the seventh rung from the top? Give up? Drag your cursor between the asterisks for the answer:
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The ship rises and lowers with the tide, so the water will always be touching the bottom rung
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