I hope I'm not wrong here, but B.1/2? Only because its a 50% chance
Answer:
Step-by-step explanation:
The solution is in the image
Answer:
$99
Step-by-step explanation:
MP3 Player: $100
10% Mark up: $100/10= 10
Therefore, Mark-Up Price: $100+$10= $110
This was then Marked down by 10%.
Therefore,
10% Marked down: $110/10= $11
(We then take this away from the marked up price)
Hence, Final Price : $110-$11= $99
Against the wind:
distance = 3400 km
time = 5 hr.
rate = d/t = 3400/5 = 680 km/hr
With the wind:
distance = 3400 km
time = 4 hr
rate = d/t = 3400/4 = 850 km/hr
Equations:
plane speed - wind speed = 680 km/hr
plane speed + wind speed = 850 km/hr
2(plane speed) = 1530
plane speed = 765 km/hr
Substitute and solve for "wind speed":
765 + wind speed = 850
wind speed = 85 km/hr
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