How many four digit numbers can we make from the numbers 5, 6, 7, 9 if you can repeat the digits and use the digit 5 at least on

Question

RSB [31]

3 years ago

10

How many four digit numbers can we make from the numbers 5, 6, 7, 9 if you can repeat the digits and use the digit 5 at least on

ce?

Mathematics

1 answer:

yawa3891 [41] · Answer 1 · 2022-01-26T23:24:17+03:00

yawa3891 [41]3 years ago

4 0

Multiply the number of choices for each position together. Three of the numbers can be repeated with the one (5) only being used once.

(4 possible choices) × (3 possible choices) × (3 possible choices) × (3 possible choices) = 4 × 3 × 3 × 3 = 108