Answer:
To determine the rate of temperature change for the water in Cup A for the first 10 minutes, we need to calculate the difference in temperature between consecutive minutes and divide it by the time elapsed.
Temperature change for Cup A:
(90 - 88) = -2°C (from minute 0 to minute 1)
(88 - 86) = -2°C (from minute 1 to minute 2)
(86 - 85) = -1°C (from minute 2 to minute 3)
(85 - 83) = -2°C (from minute 3 to minute 4)
(83 - 82) = -1°C (from minute 4 to minute 5)
(82 - 81) = -1°C (from minute 5 to minute 6)
Total temperature change for Cup A: -2 - 2 - 1 - 2 - 1 - 1 = -9°C
Rate of temperature change for Cup A:
(-9°C) / (6 minutes) ≈ -1.5°C per minute
Therefore, the approximate rate of temperature change for the water in Cup A for the first 10 minutes is -1.5°C per minute.