Question

The science club is conducting an experiment. The table below shows whether their saltwater solution reached a freezing point at different temperatures. Saltwater Solution Freezing Temperatures Temperature (°C) Solution Froze - 15°C Yes -9.5°C No 0°C No 10.5°C Yes -6°C No Based on these results, which inequality represents their conclusion regarding the temperature, t, for which their saltwater solution freezes? Ot=0 Ot> -10 Ot< -10 Ot> -15

Answer 1

FRom the table we notice that, for the temperatures given, the saltwater frozes only for -10.5° C and -15° C. We also notice that for -9.5° C the saltwater does not froze. From this we can conclude that the water frozes for temperatures below -10° C (in here we are using the data from the options), therefore the saltwater frozes for:

$t<-10$