Respuesta :
Answer: Her score at the end of second stage = 30 points
Explanation:
Since we have given that
Danielle started with 10 points
Starting points = 10
In the first round ,
She lost = 20 points
( we will represent it as negative integer as she loses it) .
Now, her score becomes
[tex]= 10-20\\=-10[/tex]
In the second round,
She won = 20 points
(we will represent it as positive integer as she wins it ).
Now, her score becomes
[tex]=-10+40\\=30[/tex]
Finally , her score becomes 30 points at the end of second round.
Given =
Danielle is playing a game
She started with 10 points In the first round she lost 20 points & second round she won 40 points.
find out Danielle score
To proof
let us assume that the score of the danielle be x.
As given in the question
She started with 10 points
in first round she lost 20 points
in second round she won 40 points
thus the equation becomes
x = 10 - 20 + 40
solving the above equation
we get
x = 30
thus the score of the Danielle is 30 points.
Hence proved
