Question

The number line shows the distance in meters of two skydivers, A and B, from a third skydiver located at point X:

A horizontal number line extends from negative 3 to positive 3. The point labeled as A is at negative 2.5, the point 0 is labeled as X, and the point labeled B is at 0.5.

Write an expression using subtraction to find the distance between skydivers A and B. (5 points)

Show your work and solve for the distance using additive inverses. (5 points)

Answer 1

@Michele_Laino

Answer 2

your problem can be modeled by this subsequent drawing:

Answer 3

Ok

Answer 4

so, the request distance d, is given by the subsequent formula:
d=B-A=0.5-(-2.5)
So, what is:
0.5-(-2.5)=...?

Answer 5

3

Answer 6

Now i think we have to Show your work and solve for the distance using additive inverses.

Answer 7

that's right! Your answer is right!

Answer 8

Ok

Answer 9

we can write this:
\[d = B - A = \frac{1}{2} - \left( { - \frac{5}{2}} \right) = \frac{1}{2} + \frac{5}{2} = \frac{{1 + 5}}{2} = ...?\]
please continue

Answer 10

Ok can youwrite it the other way so i can be able to write it in the answer box please

Answer 11

I think that you have to write:
3

Answer 12

No i have to Show your work and solve for the distance using additive inverses.

Answer 13

we can write this:
first way:
d=0.5-(-2.5)=
=(3-2.5)-(-2.5)=
=3-2.5+2.5

second way:
d=0.2-(-2.5)=
=0.5-(0.5-3)=
0.5-0.5+3

Answer 14

For the first one i got. 3 - 2 3

Answer 15

That the first way am i correct

Answer 16

I think that both ways are correct!

Answer 17

O so do i need to answer them or no??

Answer 18

I think that you have to choose only one of them

Answer 19

Ok but do i have to answer one of them? Do you want me to a nswer one of them

Answer 20

??

Answer 21

I think that you can choose the first one!

Answer 22

namely the first way!