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rusak2 [61]
3 years ago
10

Two planes left the same airport traveling in opposite directions. The first plane left the airport at 2 P.M. traveling at an av

erage rate of 500 mph. The second plane left the airport at 4 P.M. traveling at an average rate of 550 mph. When will the planes be 3100 miles apart?
Mathematics
1 answer:
Elanso [62]3 years ago
7 0
Ok so the first plane has 2 hours head start
means 2 times 500=1000=1000mile head start
so now

3100-1000=2100

in how many hours will the conbined planes travel 2100
500+550=1050
1050 times how many hours=2100
divide both sides by 1050
hours=2
4pm was our base time
4+2=6
answer is 6PM
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4 years ago
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Answer:

  multiply by feet per mile and divide by seconds per hour

Step-by-step explanation:

To get the desired units, multiply by a factor that is equal to 1, but has the desired units in the numerator and the units you're converting from in the denominator.

For units in the denominator that you want to change, use the inverse of the above multiplier.

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3 years ago
216 students enrolled in a freshman-level chemistry class. By the end of the semester, 5 times the number of students passed as
Semenov [28]

Answer:

The no. of student failed is 36.

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7 0
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3 0
3 years ago
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