Question

the temperature at 12 noon was 10 degree c above zero if it decrease at the rate of 2 Degree c per hour until midnight at what time would the temperature be 8degree c below zero? what would be the temperature at midnight? answer​

Answer 1

Step-by-step explanation:

at 1 PM =10-2

at 2PM =8-2=6

at 3PM =6-2=4

at 4PM =4-2=2

at 5PM =2-2=0

at 6PM =0+2=2

at 7PM =2+2=4

at 8PM =4+2=6

at 9PM =6+2=8

at 10PM =8+2=-10

at 11PM =-10+2=-12

at midnight =-12+2=-14

differences between the temperature celcius is above 0 and 8 Celcius below 0

time for this degree =18÷2=1 hours

so it rise temperature was 8 celcius below 0 is 9 pm

differences between the time in 12 hours =12×2=24 celcius

so temperature at midnight =10-24=-14 celcius