The correct answer is 3
the triangle sides are equal. so :
good luck
80 because it should be the same as the other one
<u>Answer</u>
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<em>Hope this helps! <3</em>
<h2 />
Answer:
Airspeed in still air: 140 mph
Step-by-step explanation:
Let s represent the speed in still air. Recognize that the distance traveled is the same in either direction.
Also note that SF is north of LA.
Distance to SF from LA = Distance to LA from SF
(s-20)(mph)(4 hr) = (s+20)(mph)(3 hr)
Then:
4s - 80 = 3s + 60 => s = 60 + 80 + 140 (mph)
The airspeed of the plane was 140 mph in still air. With a tail wind, the plane is faster; with a headwind, slower.
1/4 : 2 or 1/8 : 1. That is how I would have done it. I hope this helps you.