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LenKa [72]
3 years ago
15

There are 80 students in a school. Every student is taking either algebra or pre-calculus, and some students are taking both. Th

ere are 60 students in the algebra class. If 15 students are taking both algebra and pre-calculus, what is the probability that a randomly selected student is taking pre-calculus but not algebra?
Mathematics
1 answer:
Finger [1]3 years ago
3 0

Answer:

1/4

Step-by-step explanation:

Total students = 80

Students taking both classes =  15

Students taking algebra class = 60

Students taking only algebra class = 60 - 15 = 45

Students taking only pre-calculus class = 80- (45+15) = 80 - 60 = 20

P( students taking pre-calculus but not algebra) = 20/80 = 1/4

                         

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Phoenix [80]

Answer: (-6, 5)

<u>Step-by-step explanation:</u>

Use the Midpoint Formula: \dfrac{(x_k, y_k)+(x_L,y_L)}{2}=(x_m, y_m)

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3 0
3 years ago
How did the Germanic tribes govern thier kingdoms
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3 0
3 years ago
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<h3>What is the linear system?</h3>

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Given

The equations are shown below.

y = 5 - 3x .....1

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Substitute equation 1 in equation 2. Then

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Then substitute the value of x in equation 1.

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More about the linear system link is given below.

brainly.com/question/20379472

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