anonymous
  • anonymous
An airplane flew 3 hours with a 60 mph head wind. The return trip with a tail wind of the same speed took 2 hours. Find the speed of the plane in still air. Answer 320 mph 300 mph 340 mph 380 mph
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Mertsj
  • Mertsj
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Mertsj
  • Mertsj
\[2(r+60)=3(r-60)\]
Mertsj
  • Mertsj
\[2r+120=3r-180\]

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Mertsj
  • Mertsj
r=300

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