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AnnyKZ [126]
2 years ago
9

My 8-digit passcode for internet banking is made up of: my favorite number; followed by double my favorite number, plus four; fo

llowed by half of my favorite number, minus three; followed by triple my favorite number, plus five. All eight digits are different.
The first number of my passcode is 3. What is my full passcode?
Advanced Placement (AP)
1 answer:
luda_lava [24]2 years ago
7 0

Answer:

uh... look at work

Explanation:

36101.5 -15914

3

3*2

6+4

3/2 = 1.5

1.5 - 3 = -1.5

3 * 3 = 9

9 + 5 = 14

Conclusion; this is indeed not possible.

But if I continue it in the different way then:

361052611

3

3 * 2 = 6

6 + 4 = 10

10/2 = 5

5 - 3 = 2

2 * 3 = 6

6 + 5 = 11

Once again... no.

I must assume your favorite number is 3 since it is the first number and is listed as the first, also there are some decimals if I do it the way I am told. I could try to solve it in another way which would be logical but that would require using both the Sum, Quotient, or Product of an answer AND using the original number (3) again. Sooooooo based on wording... it isn't possible.

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Part B. No, they are assymetric.

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For B: IQR = 4.5

For the two sets of data the IQR is the same and equals 4.5.

Part B: Box plot is a type of graphic, similar to histogram. To plot it, you need 5 points but for this question, it will be analised just the symmetric aspect. As the graphic is a retangule, to be symmetric, the median or mean has to be in the center of the retangule. In the case of the towns, the box plots are assymetric because the median of each town is closer to the Q1 of each town. In other words, the retangule is not "divided" exactly in half.

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