By definition we have the following equation:
t = d / v
Where,
t: time
d: distance
v: speed
For this case we have:
d / 30 + d / 4 = 17
Rewriting we have:
2d + 15d = 17 (60)
17d = 17 (60)
d = 60 mi
Then, the walking time is
t = d / v
t = 60/4
t = 15 hours
Answer:
She walked
t = 15 hours
Answer:
= 50 Minutes
Whole Race Time : 2 Hour and 50 Minutes
Step-by-step explanation:
so 2 Hour = Race completed
we need to find what 1/4 Race = x Hours
so 200 divided by 4 because Race is done.
we need to find how long to finish the whole race also known as .
200 divided by 4 = 50
so Holden still need 50 Minutes to finish the race.
Answer:
13/7
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(7-(-6))/(4-(-3))
m=(7+6)/(4+3)
m=13/7
Answer:
3x-21
Step-by-step explanation:
3*x+3*(-7)=3x-21
(d(5) -d(3))/(5 -3) = (350 -126)/2 = 112 . . . . . meters/second
112 m/s; it represents the average speed of the object between 3 seconds and 5 seconds