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Plss help 7. (a) how many 3-digit positive numbers are there? (b) how many 4-digit positive numbers are there?
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13 votes
Plss help

7. (a) how many 3-digit positive numbers are there?
(b) how many 4-digit positive numbers are there?

User Sergey Geron
by
6.6k points

2 Answers

5 votes

Answer:

Explanation:

A. a=100. an=999

an=a+n-1.d

Therefore answer will be 900.

B. 9000.

User DoiT International
by
7.5k points
5 votes

Answer:

a) 900

b) 9,000

Explanation:

User Minder
by
7.1k points
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