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Scilla [17]
3 years ago
10

In Ms.Perron's class, 75% of the students are boys.There are 18 boys in the class. What is the total students in Ms.Perron's cla

ss?
Mathematics
2 answers:
kifflom [539]3 years ago
7 0

Answer:

Step-by-step explanation:

Let x be the total students.

75% of x = 18

(75/100) * x = 18

               x = 18 * 100 / 75  

                  = 18 * 4 / 3  ( giving by 25th table)

                   = 6 * 4  ( giving by 3rd table)

x = 24 students

Thepotemich [5.8K]3 years ago
6 0

Answer:

24.

Step-by-step explanation:

75: 3/4

18 / 3 = 6

6 x 4 = 24

0.75 x 24 = 18

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EastWind [94]

There is a typo error in the last part of the question. The corrected part is-

"If the probability that she orders just a grilled cheese sandwich is .76, what is the probability that she will order a grilled cheese or fries?"

Answer:

The probability that she will order a grilled cheese sandwich or fries is <u>0.43.</u>

Step-by-step explanation:

Given:

Probability of ordering fries is, P(F)=0.32

Probability of ordering cheese sandwich is, P(S)=0.76

Probability of ordering both sandwich and fries is, P(F\cap S)=0.65

Probability of ordering cheese sandwich or fries is given by the union of both the events 'F' and 'S' given as P(F\cup S).

Now, using addition theorem of probability, we get:

P(F\cup S)=P(F)+P(S)-P(F\cap S)\\P(F\cup S)=0.32+0.76-0.65\\P(F\cup S)=0.43

Therefore, probability of ordering cheese sandwich or fries is 0.43.

8 0
3 years ago
Which of the following numbers is a multiple of 6?
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Step-by-step explanation:

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therefore, x= 5/2 x= -1/2




mark brainliest plzz

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