Answer:
Speed of plane in still air: 490 mile/hour
speed of wind: 70 mile/hour
Step-by-step explanation:
still speed = x wind speed = w
with wind: speed = still + wind
(x+w) * 3 = 1680 ...a
against wind: speed = still - wind
(x-w) * 4 = 1680 ...b
b-a ... 4x-4w-3x-3w = 0
x-7w = 0
x = 7w
substitution: (7w+w)*3 = 1680 8w = 560 wind speed (w) = 70
still speed (x) = 7w = 490 mile/hour
Answer:
they might be affordable bc no one wants to put their money in that bank bc it gets stolen by the shark dude or something
Answer:
it is so hard men and there is no solution maybe you can search on siri
11/3, 1.3, 1.34 Is the correct way to put it. PLZ give me the Brainliest answer. :)