Question

The temperature at 12 noon was 10°C above zero. If it decreases at the rate of 2°C per hour until midnight, at what time would the temperature be 8°C below zero?​

Answer 1

Answer:

9:00pm

Step-by-step explanation:

let he temperature be -8℃ after x hr

the rate of decreasing temperature is 2℃

a/q

. 10-2x=-8

18= 2x

9=x

hence after 9hr temperature will be 8℃ below zero it means at 9:00pm

........666......