Question

4. The temperature of a city is 10°C. If the temperature drops by 3°C every day, for the next few days. What
will be the temperature on the 10th day?​

Answer 1

Step-by-step explanation:

1st Method

Temperature of a city = 10°C

Temperature dropped every day = 3°C

Temp. on first day = 10°C - 3°C = 7°C

Temp. on 2nd day = 7°C - 3°C = 4°C

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Temp. on 10th day = -17°C - 3°C = -20°C

2nd Method

Temperature of a city = 10°C

Temperature dropped every day = 3°C

Temperature dropped in 10 days = 10 × 3°C = 30°C

Temperature on 10th day = 10°C - 30°C = -20°C