Question

Pls awnser in the attachment

Answer 1

A number that is divisible 9 is also divisible by 3 because 3 is a factor of 9.

Explanation:

Solution:

Factors of 9 are {9,3,1}

Factors of 3 are {3,1}

Let us assume a number 18

Now 18 can also be written as 9
`*`2

hence we can say that number 18 is divisible by 9

by 9 again can be written as 3
`*`3

because 9 is divisible by 3

Now 18 can be rewritten as 3
`*`3
`*`2

hence we can say that number 18 is divisible by 3 also

So finally we can say that a number that is divisible 9 is also divisible by 3 because 3 is a factor of 9.