Question

For an experiment, the temperature of a liquid must stay above
60°F
. The starting temperature of the liquid is
90°F
. It is placed in a cooler, which lowers its temperature
3°F
each minute.
Which statement describes how many minutes the liquid can stay in the cooler?

The liquid must be in the cooler fewer than 10 minutes.

The liquid must be in the cooler fewer than 15 minutes.

The liquid must be in the cooler fewer than 30 minutes.

The liquid must be in the cooler fewer than 60 minutes.

Answer 1

Is it A ?

Answer 2

Alrighty, so, if the liquid is being cooled 3 degrees every 10 minutes, and it has to stay above 60, how long will it take for the liquid to get to 60 ?

Answer 3

10 minutes

Answer 4

Okay, sorry, messed up the answer, "3 degrees every minute*" but yes, it'll take 10 minutes for it to get down to 60, in other words yes, it would be A.

Answer 5

thanks!