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sweet [91]
4 years ago
12

Ten plus eight times a number a equals eleven times number d minus six. Solve for a.

Mathematics
1 answer:
dem82 [27]4 years ago
7 0
Write an equation

10 + 8a = 11d - 6

Isolate 8a

8a = 11d - 16

Isolate a by dividing by 8

a = (11d/8) - 2

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Answer:

Logic with the use of Truth Table

Step-by-step explanation: a) Oleg is a math major= P; Oleg is a economic major=Q; Oleg is required to take math 362=R; Oleg is not required to take 362=←R

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     P║ Q ║ P∨Q

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ii)  Oleg is a math major, then Oleg is required to take Math 362:

    P║  R  ║  P∧ R

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    F     T         F

    F     F         F

iii) Oleg is an economic major or Oleg is not required to take Math 362:

    Q║   ←R   ║  Q ∨ ←R

    T        T              T

    T        F              T

    F        T              T

    F        F              F

c) It is valid because Oleg can only take Math 362 since Oleg is a math major, therefore, it follows that, R ∧ ( P ∨  Q) is valid.

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Step-by-step explanation:

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