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irinina [24]
3 years ago
10

How many times will the digit '3' appear if we write all whole numbers from 1 to 9999?

Mathematics
1 answer:
Elan Coil [88]3 years ago
6 0

Answer:

1300

Step-by-step explanation:

Si unimos del 3XXX al 3999: 1000 treses. * En total le salen 1300 apariciones de la cifra 3. xd

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Explanation:

Following the statements you can draw the triangles mnp and mab.

1) Both are similar triangles with the common vertex m, and with these corresponding sides:

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2) So, by side-angle-side theorem

segment ma         segment mb
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3) You know:

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4) Therefore:

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Answer:

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Step-by-step explanation:

The information provided is:

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