# Tutor profile: Katrina D.

Katrina D.

UNT College Graduate, BS in Mathematics, 10+ years as Math Tutor

## Questions

### Subject: SAT

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Question:

Kathy works y hours a day for 5 days. Robert works x hours a day for 3 days. Which of the following shows the total number of hours worked by Kathy and Robert?

Katrina D.

Answer:

5y+3x

### Subject: Pre-Algebra

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Question:

What variable represents the hypotenuse of a right triangle in the Pythagorean theorem?

Katrina D.

Answer:

The hypotenuse is represented by c. The equation of the Pythagorean theorem is a^2+b^2=c^2.

### Subject: Algebra

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Question:

Explain how to find the slope from the given equation below: 2x=3y-8

Katrina D.

Answer:

To find the slope, you must first isolate y by subtracting 2x and 3y from both sides of the equation. Next, divide both sides by -3. The slope of the line is given by the coefficient of x, 2/3.

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