1. A submarine was suituated 800 feet below sea level. If it ascends 250 feet, what is it new position
2. Metal mercury at room temperature is a liquid. Its melting point is -39°C. The freezing point of alcohol is-114°C. How much warmer is the melting point of mercury than the freezing point of alchol
3. Find the difference between an elevation of 535 feet above sea level and an elevation of 8 feet below sea level.
4. The temperature at 6 A.M. was 12°F. At 3 P.M.
the temperature was 32°F. What was the change in temperature?
5. A professional cliff diver dives from a ledge 65 feet above the surface of the water. The diver reaches a underwater depth of 15 feet before returning to the surface. What was the diver's change in elevation from the highest point of the dive to the lowest.
With number sentence and solution and answer.
1. To find the new position of the submarine, we need to add the change in altitude to its initial position.
Initial position: 800 feet below sea level
Change in altitude: 250 feet
To find the new position, we add the initial position and the change in altitude:
800 feet - initial position
+ 250 feet - change in altitude
800 feet + 250 feet = 1050 feet
Therefore, the new position of the submarine is 1050 feet below sea level.
2. To find the temperature difference between the melting point of mercury and the freezing point of alcohol, we subtract the freezing point temperature from the melting point temperature.
Melting point of mercury: -39°C
Freezing point of alcohol: -114°C
To find the temperature difference, we subtract the freezing point from the melting point:
-39°C - melting point of mercury
- (-114°C) - freezing point of alcohol
-39°C + 114°C = 75°C
Therefore, the melting point of mercury is 75°C warmer than the freezing point of alcohol.
3. To find the difference between two elevations, we subtract the lower elevation from the higher elevation.
Elevation A: 535 feet above sea level
Elevation B: 8 feet below sea level
To find the difference, we subtract the lower elevation from the higher elevation:
535 feet - elevation A
-8 feet - elevation B
535 feet - (-8 feet) = 543 feet
Therefore, the difference between an elevation of 535 feet above sea level and an elevation of 8 feet below sea level is 543 feet.
4. To find the change in temperature, we need to subtract the initial temperature from the final temperature.
Initial temperature: 12°F
Final temperature: 32°F
To find the change in temperature, we subtract the initial temperature from the final temperature:
32°F - final temperature
-12°F - initial temperature
32°F - 12°F = 20°F
Therefore, the change in temperature is 20°F.
5. To find the change in elevation for the cliff diver, we subtract the lowest point from the highest point.
Highest point: 65 feet above the surface of the water
Lowest point: 15 feet below the surface of the water
To find the change in elevation, we subtract the lowest point from the highest point:
65 feet - highest point
-15 feet - lowest point
65 feet - (-15 feet) = 80 feet
Therefore, the change in elevation from the highest point of the dive to the lowest is 80 feet.