Answer:
-3 + -6= -9
because there is answer given
I think it's the second equation. I could be wrong but I think that's what it is
Answer:
35?
Step-by-step explanation:
Total miles traveled in p hours = p*q miles and
Total miles traveled in r hours = r*s miles
so, average rate of speed = total miles traveled / number of hours
=[{(p*q)+(r*s)} / (p+r)] miles per hour
