Hi,
The first thing you have to remember, that the sum of all probabilities are equal to 1.
As you have only 4 items : Pasta + Fish + Pizza +Salad
So pasta + fish + pizza +salad = 1
1 means every client who bought something had something to eat.
So now it simple :
We know the probability of every other items, so we will find the probabilty of salad by substracting off 1 every other probabilities.
<u>Remind yourself to always have data in same shape/ units etc.</u>
Here we have percentage, fraction, numbers.... can be confusing.
So convert all in same shape. I 'm going to convert all in numbers, as it seems to me the simpliest.
I will call probability of salad "X" as it usually like that we call something unknown in math.
So pasta = 15 % = 15/100 = 0.15
fish = 0.2
pizza = 3/10 = 0.3
salad = X
So now we have :
pasta + fish + pizza +salad = 1
replace by what I know :
0.15 +0.2+0.3 + X = 1
0.65 + X = 1
0.65 +X -0.65 = 1 - 0.65
X = 0.35
Salad probability is 0.35 , which means 35 % .
<h2><u>Solution </u><u>-</u><u>:</u><u> </u></h2>
<u>Example </u><u>-</u><u>1</u><u> </u>
<u>Here </u><u>we </u><u>have </u><u>,</u><u>,</u><u>,</u><u> </u>

<u>solve </u><u>-</u><u>;</u><u> </u>
<u>6</u><u>x</u><u> </u><u>^</u><u>9</u><u>×</u><u>1</u><u>/</u><u>5</u>
<u>
</u>
<u>Convert </u><u>on </u><u>radical </u><u>form </u>
<u>
</u>
<u>Example </u><u>-</u><u>2</u><u> </u>
<u>
</u>
<h2>__________________</h2><h3>
<u>More </u><u>Basic </u><u>Information </u><u>-</u><u>:</u><u> </u></h3>
- hair in the question 3x is called radicant and five is called the index of radical. and in second question X is radicant of the number and five and two are index of the number.
<u>types </u><u>of </u><u>Radical </u><u>-</u><u>:</u><u> </u>
- pure radical
- mixed radical
- unequal radical
- equal radical
<u>rationalization </u>
- the operation of multiplication of a radical with the other radical to get product a rational number is called rationalisation.
<u>other </u><u>name </u>
Miguel would have to color one section blue, one section red, and two sections green.
Answer:
I got 70% hope it helps man