Question

Danielle is playing a game. She started with 10 points. In the first round she lost 20 points. In the second round she won 40 points what is her score

Answer 1

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

$= 10-20\\=-10$

In the second round,

She won = 20 points

(we will represent it as positive integer as she wins it ).

Now, her score becomes

$=-10+40\\=30$

Finally , her score becomes 30 points at the end of second round.

Answer 2

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