SOLUTION: A butterfly flew 4 mi. with the wind in 1 hr. It returned against the same wind in 1 hr. 15 min. Find the rate of the wind.
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Question 1110478: A butterfly flew 4 mi. with the wind in 1 hr. It returned against the same wind in 1 hr. 15 min. Find the rate of the wind.
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
r, speed without wind
w, speed of the wind
Use Elimination Method...
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