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Tutor profile: David A.

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David A.
SAT & Humanities Tutor
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Questions

Subject: SAT

TutorMe
Question:

Which of the following numbers is NOT a solution of the inequality 3x−5 ≥ 4x−3? A) -1 B) -2 C) -3 D) -5

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David A.
Answer:

First, let's find the value of x. We can begin this by subtracting 4x on both sides. As a result, we get -x-5 ≥ -3. From there, add -5 to both sides. As a result, we get -x ≥ 2. Since we don't want the value of -x, as we want positive x, we can flip the negative/positive signs and then flip the inequality. As a result, we get x ≤ -2. From there, we see that the only option that is correct is A as -1 ≤ -2 is true.

Subject: English

TutorMe
Question:

In a sentence, when can a semicolon be used?

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David A.
Answer:

Semicolons are used to separate two complete sentences (these are also called independent clauses) that are related to each other. An example of this is: I made the winning shot; our team won the game.

Subject: Algebra

TutorMe
Question:

Solve for x: 3x+9=10

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David A.
Answer:

To begin, first, subtract nine from both sides of the equation. 3x+9-9=10-9 Then, simplify. 3x=1 Now divide both sides by three 3x/3=1/3 Then, simplify. x=1/3 The answer is that x=1/3 or .333

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