# Tutor profile: Rania S.

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Rania S.

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## Questions

### Subject: Pre-Algebra

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Question:

Solve this proportion 3/60 = 6/x

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Rania S.

Answer:

We can cross multiply to solve for the unknown 3x = 6(60) 3x = 360 Divide both sides by 3 x = 120

### Subject: Basic Math

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Question:

What is 1/3 of 15

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Rania S.

Answer:

The word 'of' means multiplication so we need to multiple 1/3 by 15. Remember that whole numbers can be written as fractions by putting them in the numerator over 1. So 1/3 x 15/1, we multiply the numerators then we multiply the denominators We get 15/3, now we can just divide 15 by 3 since the fraction bar also means division. 15 divided by 3 is 5

### Subject: Algebra

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Question:

Expand: 8x(3x+7)

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Rania S.

Answer:

Let's use the distributive property to expand this. We need to multiply 8x by each of the terms in the parentheses. 8x times 3x is 24 x^2 plus 8x times 7 is 56x so the answer is 24x^2 + 56x

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