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One day at 3:00 a.m., the temperature was
–
13
°
F
in Kodiak, Alaska. At 10:00 a.m., the temperature was 22°F. What was the average change in temperature per hour?
To find the average change in temperature per hour, we need to first calculate the total change in temperature and then divide it by the elapsed time.
Total change in temperature = Final temperature - Initial temperature
= 22°F - (-13°F)
= 35°F
Elapsed time = (10:00 a.m. - 3:00 a.m.) = 7 hours
Average change in temperature per hour = Total change in temperature / Elapsed time
= 35°F / 7 hours
= 5°F/hour
Therefore, the average change in temperature per hour is 5°F.
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A mountain climber on Mt. Everest is at 29,035 ft above sea level. A stone at the bottom of the Dead Sea is at 1,349 ft below sea level. What is the difference in elevation between the mountain climber and the stone?
To find the difference in elevation between the mountain climber and the stone, we need to add their elevations together since they are both measured from sea level.
Difference in elevation = Elevation of mountain climber + Elevation of stone
= 29,035 ft + 1,349 ft
= 30,384 ft
Therefore, the difference in elevation between the mountain climber on Mt. Everest and the stone at the bottom of the Dead Sea is 30,384 ft.
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A deep-sea diver must descend and ascend in short steps to equalize pressure on his body. If the diver rises toward the surface too fast, he may suffer from a physical condition called “the bends.” Suppose the diver started at 82 feet below the surface and rose in five steps of 15 feet each. Use an integer to describe his new position in relation to the water surface.
The diver started at 82 feet below the surface. After taking five steps of 15 feet each, the total distance he rose is:
5 x 15 = 75 feet
Therefore, his new position in relation to the water surface is:
82 - 75 = 7 feet below the water surface
how did 5 get into the answer?
The number 5 represents the total number of steps the diver took to ascend towards the water surface. The problem states that the diver ascended in five steps of 15 feet each.
So, 5 x 15 = 75 feet is the total distance the diver rose. To determine the diver's new position in relation to the water surface, we need to subtract the total distance he rose (75 feet) from his starting position (82 feet below the water surface).
Hence, the diver's new position in relation to the water surface is 82 - 75 = 7 feet below the water surface.
oh okay thank you
You're welcome! If you have any more questions, don't hesitate to ask.
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The temperature in your town is 31°F. The radio announcer says that the temperature will drop 15 degrees. What will the temperature be? Write an equation to show how you found your answer.