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Ne4ueva [31]
3 years ago
14

alex is traveling by train to a vacation spot that is 810 miles away. The train is traveling at 90 miles per hour, and it has al

ready covered 180 miles. In exactly how many hours will alex reach his destination from his current position
Mathematics
2 answers:
Elena L [17]3 years ago
4 0

Answer:

7 hours

Step-by-step explanation:

810 - 180 = 630

630/ 90 = 7

Korvikt [17]3 years ago
3 0

Answer:

x = 7 h

Explanation:

<em>First, we write the data of the problem. </em>

Alex travels 810 miles away

Train - 90 miles / h

Alex covers 180 miles.

How many hours does Alex walk in the distance?

1. Calculate the distance Alex still has to travel.

 810 miles - 180 miles = 630 miles

2. We take into account the speed of the train to calculate how many hours Alex will cover the remaining distance.

90 miles .... 1 h

630 miles .... x h

x = 630 milesx1h / 90 miles

x = 7 h

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Step-by-step explanation:

Consider the provided information.

n = 49, s = 8.2 c = 95%and \bar x=37

Degree of freedom is: n-1 = 49-1 = 48.

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