Find the distance between -5 2/5 and -1 3/10 on a number line

4 1/10

Step-by-step explanation:

-5 2/5 lies to the LEFT of -1 3/10.  To find the distance between these numbers on the number line, subtract -5 2/5 from -1 3/10:

Writing both numbers as improper fractions, we get:

-27/5 is to be subtracted from -13/10.

Here we see that the LCD is 10, so we change -27/5 to -54/10.  Now subtract

-54/10 from -13/10:

    -13/10

-(  -54/10  )

     41/10, or 4 1/10, represents the distance between -5 2/5 and -1 3/10.

im alright what do you need

step-by-step explanation:

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."