Question

Chemical A freezes at 13 degrees lower than Chemical B if Chemical A freezes at -36 degrees celsius at what temperature does Chemical B freezes?

Answer 1

Chemical B would freeze at -23 degrees Celsius because -36 + 13 is -23.

Answer 2

Let's assign variables for the freezing points of the three chemicals for easier reference.

x = freezing pt of Chemical A
y = freezing pt of Chemical B

From the problem statement, x = -36
Then y would be:
x = y - 13
y = x + 13
y = -36 + 13
y = -23 degrees.

Thus, Chemical B freezes at -23 degrees Celsius.