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nirvana33 [79]
3 years ago
11

Show that any number of the form ABCABC (e.g. 356356) is divisible by 13.

Mathematics
1 answer:
Shtirlitz [24]3 years ago
8 0

We could write such a number as

10^5a+10^4b+10^3c+10^2a+10b+c

=10^2(10^3+1)a+10(10^3+1)b+(10^3+1)c

=(10^3+1)(100a+10b+c)

10^3+1=1001=13\cdot77 so we're done.

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The ratio of adams height to sam's height is 4:3 how many times sam's height is adams height
Levart [38]
The <span>ratio of adam's height to sam's height is 4:3. Therefore, Sam's height is 3/4 of adam's height. This is done by applying rules on ratios. We do as follows:

4 / 3 = adam's height / sam's height
sam's height = (3/4) adam's height

Hope this answers the question. Have a nice day.</span>
4 0
3 years ago
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Andrej [43]

Answer:

it will take him <u>9 weeks </u>to earn the rest of what he needs.

Step-by-step explanation:

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Divide 270 by 30(the amount of money he gets each week) and you will get <u>9</u>.

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3 years ago
Identify Arithmetic Mean, Geometric Mean and Harmonic Mean from the following averages: 56.4, 59.8 and 55.8
photoshop1234 [79]
If you would like to calculate the arithmetic mean, geometric mean, and harmonic mean from the following averages, you can calculate this using the following steps:

averages: 56.4, 59.8, 55.8
the number of values: 3

arithmetic mean:
(56.4 + 59.8 + 55.8) / 3 = 57.33

geometric mean:
(56.4 * 59.8 * 55.8)^(1/3) = 57.31

harmonic mean:
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3 years ago
Question 4 of 25
soldi70 [24.7K]

Answer:

D)graph c

Step-by-step explanation:

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Solve the following equation for s P=b+2s
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Answer:

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P-b=2s

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