Question

At 8:00 a.m. the outside temperature was -14F. By noon, the temperature had increased by 10F. Which equation can be used to determine the temperature, in degrees Fahrenheit, at noon?

Answer 1

8am : -14F

noon : -14+10 = -4F

increase between noon and 4 is 2*10 =20

4 pm: -4F + 20 = 16F

temperature at 4 pm is 16F