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crimeas [40]
3 years ago
6

Please help. will give brainliest ​

Mathematics
1 answer:
vichka [17]3 years ago
6 0

Answer:

  • B. The probability that the student received a grade better than C is 0.45

Step-by-step explanation:

<u>Total number of students:</u>

  • 15 + 30 + 35 + 16 + 4 = 100
<h3>Statements</h3>

A.

  • p(<D) = 4/100 = 0.04
  • 0.04 ≠ 0.2
  • Incorrect

B.

  • p(>C) = (30 + 15)/100 = 45/100 = 0.45
  • 0.45 = 0.45
  • Correct

C.

  • p(not A or B) = (100 - 15 - 30)/100 = 55/100 = 0.55
  • 0.55 ≠ 0.45
  • Incorrect

D.

  • p(B or C) = (30 + 35)/100 = 65/100 = 0.65
  • 0.65 ≠ 0.35
  • Incorrect

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Answer:

One Solution

Step-by-step explanation:

First substitute the y in the first equation with the second equation to get

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since theres a variable of both sides, you subtract the variable with the least coefficient, in this case, you add 2x to both sides to get

-4=5x+3

subtract the constant on both sides to get

-1=5x

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4 0
3 years ago
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SSSSS [86.1K]

Answer:

10 units

Step-by-step explanation:

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dlinn [17]

Answer:

see explanation

Step-by-step explanation:

(1)

x + 20 and 45 are vertically opposite angles and are congruent, so

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(2)

x + 30 and 70 are vertically opposite angles and are congruent, then

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Alina [70]

Hello from MrBillDoesMath!

Answer:

6x

Discussion:

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So both terms are "like" terms in x:

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Learn more about equations on:

brainly.com/question/13763238

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