The temperature 17

The temperature was -5 Celsius at 6 AM. It increased by a speed of three degrees every hour for six hours. The temperature then increased 1 1/2° every hour for five hours. What was the temperature at 5 PM?

Correct answer:

t2 =  20 12 = 41/2 °C

Step-by-step explanation:

t1=5 °C Δ1=3 °C Δ2=121=1+21=21 2+1=22+1=23=1.5 °C  t2=t1+Δ1 6+Δ2 5=(5)+3 6+23 5=241°C=2021°C=20.5°C

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