# Tutor profile: Tom H.

Online

Tom H.

Electrical Design Engineer at Northrop Grumman

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## Questions

### Subject: Pre-Algebra

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Question:

Bob makes $10/hour delivering pizzas. He earned $380 this week. Write an equation and then solve it to find out how many hours he worked this week.

Inactive

Tom H.

Answer:

10*p = $380; p = hours Bob worked delivering pizzas p = 38 hours

### Subject: Basic Math

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Question:

Express 331/1000 as a decimal.

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Tom H.

Answer:

331/1000 = 0.331

### Subject: Algebra

TutorMe

Question:

Simplify the following equation: (4x^2*y^-2)^3 / (2x*y^3)^3

Inactive

Tom H.

Answer:

(4x^2*y^-2)^3 / (2x*y^3)^3 = (2^(2*3) * x^(2*3) * y^(-2*3)) / (2^3 * x^3 * y^(3*3)) = (2^6 * x^6 * y^-6) / (2^3 * x^3 * y^9)) = (2^3 * x^3) / (y^15) = (8x^3) / (y^15)

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