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2 years ago

A book has 100 pages, How many times is the digit ''3'' used numbering its pages?

Mathematics

2 answers:

Harrizon [31]2 years ago

5 0

19 pages. 3,13,23,30,31,32,33,34,35,36,37,38,39,43,53,63,73,83,93

ohaa [14]2 years ago

3 0

18 pages
Because if each 10 pages consists 1 page with number 3 (3, 13, 23 and etc.)
We have 10 pages with no. 3.
Also there is 30 - 39 numbers
Excluding 33 there is 8 of that kind of pages
10 + 8 = 18

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Answer:

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Step-by-step explanation:

Rewrite equations:

y=x−4;x+2y=10

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3 years ago

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lys-0071 [83]

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3 years ago

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son4ous [18]

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Answer:

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Step-by-step explanation:

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Answer:

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So the correct answer is:

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