aikomobolanle aikomobolanle

21-07-2021
Mathematics

contestada

How many counting numbers have three distinct nonzero digits such that the sum of the three digits is 7?

Respuesta :

jcherry99 jcherry99

21-07-2021

Answer:

6

Step-by-step explanation:

You have 2 conditions.

1. The digits must be different.

2. The digits must add to 7.

There aren't very many

124

142

214

241

412

421

That's it. That's your answer. There are 6 of them

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