Juan is twice as old as his brother, Peter. Juan is 12 years old. Which
2 answers:
You might be interested in
I found my notes for this exact paper and I have that first problem written. hopefully this helps
We have that
2r−9≤−6------> 2r ≤ -6+9-------> 2r ≤ 3-----> r ≤ 1.5
the solution is the interval (-∞, 1.5]
using a graph tool
see the attached figure
2r−9≤−6------> 2r ≤ -6+9-------> 2r ≤ 3-----> r ≤ 1.5
the solution is the interval (-∞, 1.5]
using a graph tool
see the attached figure