Mathematics: At a bus station, buses begin their routes at 6.Am. The schedule for two of the buses is based on time intervals listen below

At a bus station, buses begin their routes at

morgeron6071

30.06.2021

They will both leave at 07:15am

Step-by-step explanation:

Given

$Start\ time = 6:00am$

$Bus\ A=75\ mins$

$Bus\ B=15\ mins$

Required

Next time both buses leave the station at the same time

To do this, we list out the multiples of 75 and 15.

We have:

$Bus\ A = 0,75, 150, 225, 300,375, 450, 525, 600 ....$

$Bus\ B =0, 15,30,45,60,75,90,105,120,135,150,165,180.....$

After the first departure at 06:00 am (0 minutes) for both buses respectively, the next time they both leave is after 75 minutes (common multiple)

So, the time is:

Time = 6:00am + 75 mins

Time = 07:15am

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81074

28.08.2022

Amy didn't include the negative sign for the 20, so she got an imaginary number.

Richard made it imaginary when he didn't need to. (there isn't a negative sign underneath the radical).

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