Solve the following problems. Show/write your solution at the back.
1. In high-rise buildings, floors are numbered in increasing sequence from the ground-level floor to second, third, etc, going up. The basement immediately below the ground floor is usually labeled B1, the floor above it is B2, and so on. How many floors does an elevator travel from the 39th floor of a hotel to the basement parking at level B6?
2. A piece of ribbon 25 m long is cut into pieces of equal length. What is the measure of each ribbon in meters?
3. A deep-freeze compartment is maintained at a temperature of 12°C below zero. If the room temperature is 31°C, how much warmer is the room temperature than the temperature in the deep-freeze compartment.
1. In high-rise buildings, floors are numbered in increasing sequence from the ground-level floor to second, third, etc, going up. The basement immediately below the ground floor is usually labeled B1, the floor above it is B2, and so on. How many floors does an elevator travel from the 39th floor of a hotel to the basement parking at level B6?
2. A piece of ribbon 25 m long is cut into pieces of equal length. What is the measure of each ribbon in meters?
3. A deep-freeze compartment is maintained at a temperature of 12°C below zero. If the room temperature is 31°C, how much warmer is the room temperature than the temperature in the deep-freeze compartment.
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Answer:
1. 45 floor
2.__
3.solution:get the difference between room temperature and the temperature inside the deep-freezw compartment.
(-12) since it's below zero so 31 -(-12) =43,hence the temperature is 43°C warmer than the compartment.
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