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gogolik [260]
2 years ago
5

the bus bound for northtown departs every 15 minutes and the bus for eastown departs every 18 minutes from the central station.

Both buses start at 9:30 AM each morning. When is the next time both buses will depart from the central station at the same time?
Mathematics
1 answer:
USPshnik [31]2 years ago
7 0

Considering the least common factor of 15 and 18, it is found that they will depart from the central station at the same time at 11 AM.

<h3>How to find the time it takes for periodic events to repeat at the same time?</h3>

To find the time that passes between the events happening at the same time, we need to find the least common multiple of the periods.

In this problem, the periods are of 15 and 18, hence their lcm is found as follows:

15 - 18|2

15 - 9|3

5 - 3|3

5 - 1|5

1 - 1

Hence:

lcm(15,18) = 2 x 3 x 3 x 5 = 90 minutes.

They will depart from the central station at the same time in 90 minutes from 9:30 AM, hence at 11 AM.

More can be learned about the least common factor at brainly.com/question/16314496

#SPJ1

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Here is a note to help you: Most numbers are rational numbers. Here is how you know when a number is rational or not [especially if its a decimal].

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2) 0.333333333...

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Now that you've got that in the bag, its time for your answers!

Step-by-step explanation:

A) rational --> It has a pattern, but does not terminate

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I hope I helped you! This took forever, but it was worth it! :D

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

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