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posledela
3 years ago
7

Will someone help! i will mark brainliest

Mathematics
1 answer:
eimsori [14]3 years ago
6 0

Answer:

A

Step-by-step explanation:

Fraction of Juniors in Company B over total number of students.

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A car trip from New York to Cincinnati took 12.5 hours. The return trip by the same route took 1 hour longer because the average
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A car trip from New York to Cincinnati took 12.5 hours. The return trip by the same route took 1 hour longer.

Let x be the speed of the car

Car trip from New York to Cincinnati

We know Distance D = speed * time

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D = 12.5x

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The return trip by the same route took 1 hour longer. So 12.5+1 = 13.5 hours

he average rate of speed was 4 mph less. So speed is x-4

Distance D = speed * time

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D = (x-4)*13.5

D= 13.5x-54

The distance of ongoing trip and return trip are same

So we equate both the distance equations D= 13.5x-54  and D= 12.5x

12.5x = 13.5x-54    

Subtract  13.5 on both sides

-1x = -54

x=54

speed of ongoing trip = 54 miles per hour

Distance D = 12.5x = 12.5 * 54=675 miles

The length of the route = 675 miles



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