Answer:
64
Step-by-step explanation:
add 40+24=64/IGNORE SPAM: fjfudyshshdydyyddudu
speed with no wind = s
speed with wind = s + 5
speed against wind = s - 5
time = t
speed = distance/time
distance = speed * time
With wind, time = t, speed = s + 5, distance = 50
50 = (s + 5)t
Against wind, time = t, speed = s - 5, distance = 30
30 = (s - 5)t
t = 30/(s - 5)
50 = (s + 5) * 30/(s - 5)
50(s - 5) = (s + 5) * 30
50s - 250 = 30s + 150
20s = 400
s = 20
Answer: 20 mph
Answer:
23
Step-by-step explanation:
Answer:
y = 8x + 4(6)
y = 8x + 24
Step-by-step explanation:
8 friends bought tickets to a hockey game at $x
4 of them also bought a guide book at $6
If y = total cost
8 people bought tickets and 4 bought guides.
Then simplify by multiplying 4 and 6.