D=distance traveled one way
t=d/s
d/20 + d/30 = 12
3d+2d=60(20)
5d=720
d=720/5 = 144 mi one way
144/20 = 7.2 hrs at 20 mph
144/30 = 4.8 hrs at 30 mph
Answer:
35
Step-by-step explanation:
40=1/2(115-x)
80=115-x
-35=-x
x=35
The length of road is the range and the time
in days is the domain. Any measure of time, like years, days, minutes will always be the independent variable, D. What does it mean by set of values?
Answer:x=6 y=-58
Step-by-step explanation:I hope i help you,have a nice day.