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Mekhanik [1.2K]
3 years ago
15

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

Mathematics
1 answer:
kykrilka [37]3 years ago
3 0

Answer:

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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Jill has not been able to maintain the $1,000 minimum balance required to avoid fees on her checking account. She wants to switc
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Step-by-step explanation:

 Kindly find attached a summary of the checks she has written from May to August.

A. What is the mean number of checks Jill wrote per month during the last four months

mean= (14+19+23+24)/4

mean= 80/4

mean= 20 checks

B.  Based on the mean, estimate how much Jill expects to pay in per-check fees each month after she switches to the new account.

the expression for the total is given as

y=12.50+0.2x

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y=12.50+4

y=16.5

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C. Estimate the total monthly fees Jill will pay each month for the new checking account.

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May=12.5+2.8= 15.3

June= 12.50+0.2(19)

June=12.5+3.8= 16.3

July= 12.50+0.2(23)

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August= 12.50+0.2(24)

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8 0
3 years ago
The National Assessment of Educational Progress (NAEP) gave a test of basic arithmetic and the ability to apply it in everyday l
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Answer:

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b) 2.07

Step-by-step explanation:

Given:

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standard deviation, σ = 60

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= \frac{60}{\sqrt{840}}

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b) According to the 68 part of the 68-95-99.7 rule, 68% of all values of x fall within 1 standard deviation on either side of the unknown mean μ.

Therefore, missing number will be:

1 * [\frac{\sigma}{\sqrt{n}}]

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To find missing lengths of sides
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Step-by-step explanation:

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