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Submarine A is positioned at –1,100 feet in relation to sea level. Submarine B is positioned at –800 feet in relation to sea level. Each submarine needs to be 200 feet below sea level in 30 minutes. Which compares the speeds at which each submarine needs to travel? Submarine A must travel at a rate of StartFraction negative 200 minus (negative 1100) over 30 EndFraction = 30 ft/min, and Submarine B must travel at a rate of StartFraction negative 200 minus (negative 800) over 30 EndFraction = 20 ft/min. Submarine A must travel at a rate of StartFraction 1100 200 over 30 EndFraction = 43 and one-third ft/min, and Submarine B must travel at a rate of StartFraction 800 200 over 30 EndFraction = 33 and one-third ft/min. Submarine A must travel at a rate of StartFraction negative 1100 over 30 EndFraction = Negative 36 and two-thirds ft/min, and Submarine B must travel at a rate of StartFraction negative 800 over 30 EndFraction = Negative 26 and two-thirds ft/min. Submarine A must travel at a rate of StartFraction negative 1100 minus (negative 200) over 30 EndFraction = negative 30 ft/min, and Submarine B must travel at a rate of StartFraction negative 800 minus (negative 200) over 30 EndFraction = negative 20 ft/min.
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