Against the wind 100 m 15 sec = 6.67 mtrs / sec
With the wind 100 m 10 sec = 10 mtrs / sec
psa means plane velocity in still air
ws means wind speed
psa -ws = 6.67
psa + ws = 10
Adding both equations we get:
2 * psa = 16.67
psa = 8.34 meters per second
Since psa + ws = 10 and psa = 8.34 then wind speed = 1.66 meters per second
Answer: 94 degrees Farenheight
Step-by-step explanation:
6x4 would equal 24+70 equals 94
y
−
6
=
1
4
(
x
−
4
)
Expanding the right hand side:
y
−
6
=
1
4
x
−
1
Add
6
to both sides:
y
=
1
4
x
−
1
+
6
So the answer is
y
=
1
4
x
+
5
Answer:
$103.75 for 8 hours
Step-by-step explanation:
8hr * 60min = 480min (for the total trip)
480min / 30min = 16 (30 minute intervals in her trip)
If the first half hour is a $25 dollar charge then,
$25 * 1 + $5.25 * 15 = $103.75 (for 8 hours)