Answer:

Step-by-step explanation:
We want to evaluate the equation

at y=-2
We just have to substitute to obtain;

We now multiply to get:

This is the same as:

We multiply the numerators separately and denominators separately to get:


This implies that

Yes, for 3/5= 18/30 and 3/6= 15/30
For this case we have:
If after 2 hours the marathon runner has traveled 22 kilometers we have:
2h -----------> 22km
Applying a rule of three, we can know the time it takes to run 42km. So, we have:
2h -----------> 22km
x -------------> 42km
Where "x" is the time it takes to travel 42km. Resolving we have:




Thus, after 3.82 hours the marathon runner will travel 42km.
Answer:
3.82 hours
Answer:
8
Step-by-step explanation:
1/4 times 8 is 2
0.111, 1.001, 1.001, 1.11
hope this helps