SOLUTION: An airplane flying against the wind travels 135 miles in the same amount of time it would take the same plane to travel 165 miles with the wind. If the wind speed is a constant 30

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Question 959928: An airplane flying against the wind travels 135 miles in the same amount of time it would take the same plane to travel 165 miles with the wind. If the wind speed is a constant 30 miles per hour, how fast would the plane travel in still air?
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
___________________speed__________time__________distance
WITHWIND___________r+30____________t_____________165
AGAINST____________r-30____________t_____________135

system%28%28r%2B30%29t=165%2C%28r-30%29t=135%29

t=165%2F%28r%2B30%29=135%2F%28r-30%29

165%28r-30%29=135%28r%2B30%29
...
...
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