Answer:
10000 different numbers
Step-by-step explanation:
The numbers will have the form 1XXXX5, in this case, the order is important because 123465 is a different number to 123645. To know the total of differents decimal numbers, use the formula of permutation with repetition:
[tex]n^r[/tex]
[tex]n[/tex] is the number of options, [tex]n=10[/tex], and [tex]r[/tex] the number of times you have to place a digit, [tex]r=4[/tex].
[tex]10^4=10000[/tex]
