# SOLUTION: Hi I have a word problem and I don't quite understand it. Could you please help figure out how to slove it? Here is the question/problem: A dolphin starts at the surface of the wat

Algebra ->  Algebra  -> Real-numbers -> SOLUTION: Hi I have a word problem and I don't quite understand it. Could you please help figure out how to slove it? Here is the question/problem: A dolphin starts at the surface of the wat      Log On

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 Question 492245: Hi I have a word problem and I don't quite understand it. Could you please help figure out how to slove it? Here is the question/problem: A dolphin starts at the surface of the water. It dives down at the rate of 3 feet per second. If the water level is zero, what real number descrides the dolphin's location after 3 1/2seconds? Thank-youFound 2 solutions by chessace, Earlsdon:Answer by chessace(471)   (Show Source): You can put this solution on YOUR website!It doesn't say which way is + or -, so assume - into the water. dist = rate * time, so location = -3 ft/sec * 3.5 sec = -10.5 ft Answer by Earlsdon(6287)   (Show Source): You can put this solution on YOUR website!First. since the dolphin is diving (that's below sea-level) the number of feet here will be a negative number. Let's see how far below sea-level the dolphin will have travelled below the surface in 3.5 seconds at the rate of 3 feet per second. (3 ft./sec)(3.5 secs) = 10.5 feet. But of course, this is a negative number so the answer would be: -10.5