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The table shows the temperature of an amount of water set on a stove to boil, recorded every half minute.
A 2-row table with 10 columns. The first row is labeled time (minutes) with entries 0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4, 4.5. The second row is labeled temperature (degrees Celsius) with entries 75, 79, 83, 86, 89, 91, 93, 94, 95, 95.5.
According to the line of best fit, at what time will the temperature reach 100°C, the boiling point of water?
5
5.5
6
6.5
Answers
Answer: 5
Step-by-step explanation:
We are given time and corresponding temperature of the water.
From the time 0 to 1 min, the temperature of the water increasing by 4°C
From the time 1.1 min to 2 min, the temperature of the water increasing by 3°C
From the time 2.1 min to 3 min, the temperature of the water increasing by 2°C
From the time 3.1 min to 4 min, the temperature of the water increasing by 1°C
If you look at the table values, in 3 time intervals each, the temperature is increasing constantly.
From the time 4.1 min to 5, the temperature of the water increasing by 0.5°C,
At the time 4.5 minutes, the water temperature is 95.5
Therefore, the temperature of the water will be 100°C in 5 minutes.
A) 5.
Answer:
The correct answer is A) 5.
That is, in 5 mins the temperature reach 100°C, the boiling point of water.
Step-by-step explanation:
The time and related water temperature are provided :
- The water's temperature increased by 4°C from time O to 1 min.
- The temperature of the water increased by 3°C from 1.1 to 2 minutes.
- The temperature of the water increased by 2°C from 2.1 to 3 minutes.
- The temperature of the water increased by 1°C from 3.1 to 4 minutes.
- The temperature is steadily rising if you look at the values in the table for each of the three time intervals.
- The temperature of the water increased by 0.5°C from time 4.1 to time 5; at time 4.5, the water lemperature is 95.5.
As a result, the water's temperature will reach 100°C in 5 minutes.
Therefore, the correct answer is A) 5.
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