Question

7.
The temperature of an object first falls by 20°C and then rises by 35°C. If its initial
temperature is -20°C; then its final temperature will be =​

Answer 1

Answer:

if intial temp is -20 then if it fall by 20

it will be -40°c

then it rises by 35°C

the final temp is -5°C

Answer 2

Step-by-step explanation:

if initial temp is -20° C then

after falling the temperature by 20°C its Temperature will be -20°C - 20°C = -40°C

now temperature rises by 35°C

its final temperature is -40°C +35°C=-5 °C

So the final temperature of object is -5°C