Library / CEMC Gauss (Grade 8) /229 of 525

CEMC Gauss (Grade 8), 2020

Algebra Difficulty 1.1 Junior Find the answer Canada

If $x=4$ and $x+y=0$ , what is the value of $y$ ?

Pick one

Solution

The increase in temperature equals the warmer afternoon temperature minus the colder morning temperature.

The difference between 5 and $-3$ is $5-(-3)=5+3=8$ .
The temperature increased by $8\degree$ C.

Want a route through all this instead of an archive? The track puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.

Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.