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crimeas [40]
2 years ago
8

In Mr. Johanessen's class, 1/4 of the students failed the final exam. Of the remaining students in the class, 1/3 scored an A. W

hat fraction of the whole class passed the use but scored below and A.
The answer is 1/2 but I don't get how... URGENT!!!! Thanks
Mathematics
1 answer:
deff fn [24]2 years ago
5 0

Answer:

1/2

Step-by-step explanation:

we know that 1/4 of them failed, meaning that 3/4 of them passed.

1/3 of 3/4 is 1/4, meaning that 1/4 of the class got an A.

If 1/4 failed, and 1/4 passed with an A, that leaves 2/4 of the class that passed but didnt get an A, which simplifies to 1/2.

Hope this helps, and don't forget to mark brainliest <3

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Oxana [17]

Answer:

\displaystyle d = 18

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Coordinates (x, y)

<u>Algebra II</u>

  • Distance Formula: \displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

Point (21, 13)

Point (3, 13)

<u>Step 2: Find distance </u><em><u>d</u></em>

Simply plug in the 2 coordinates into the distance formula to find distance <em>d</em>

  1. Substitute in points [Distance Formula]:                                                         \displaystyle d = \sqrt{(3-21)^2+(13-13)^2}
  2. [√Radical] (Parenthesis) Subtract:                                                                   \displaystyle d = \sqrt{(-18)^2+(0)^2}
  3. [√Radical] Evaluate exponents:                                                                       \displaystyle d = \sqrt{324+0}
  4. [√Radical] Add:                                                                                                 \displaystyle d = \sqrt{324}
  5. [√Radical] Evaluate:                                                                                          \displaystyle d = 18
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