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Nezavi [6.7K]
3 years ago
7

. Two planes are 1620 miles apart and are traveling toward each other. One plane is traveling 120 mph

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
4 0

Answer:

Step-by-step explanation:

let the speed of one plane=x mph

speed of other plane=x+120 mph

x×1.5+(x+120)×1.5=1620

(x+x+120)×1.5=1620

(2x+120)×1.5=1620

3x+180=1620

3x=1620-180

3x=1440

x=480

speed of one plane=480 mph

speed of second plane=480+120=600 mph

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