Question

The outside temperature at midnight today in Polina’s hometown was 18 f. The temperature increases by 12f each hour over the next 15 hours. Polina’s school does not send students outside for recess if the outside temperature is32f or lower. Recess at her school always starts on the half hour or hour. Which statement is true about recess at Polina’s school?

Answer 1

B

Explanation:

Got a 100% on edge

Answer 2

T = 18 + 12h

Student can not get outside if T <= 32f

to find when will T = 32

32 = 18 +12 h

h = 7/6 ~ 1.2 hour


mid night = 12 am

at 11:30 am , -> temprature < 32 no one can get out
at 11:00 am, -> no one can get out

12:00 pm:

h = 12

T(h) = 18 + 12 x 12 = 162 f

students can get out

for h > 12