Question

I visited Montana; The temperature outside was 0 °F. An hour later, the temperature had decreased by 11 °F. An hour after that, the temperature had increased by 4 °F. What increase in temperature is needed to return to the original temperature of 0 °F?

Answer 1

after it drops by -11 and -4 , the temperature gets to -15 degrees fahrenheit. so an increase in temperature would have to go up fifteen degrees.