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# Tutor profile: Shawn C.

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Shawn C.
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## Questions

### Subject:Pre-Algebra

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Question:

Consider the following equation: 60=2(x+3). Solve for x.

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Shawn C.

Divide by 2 on both sides of the equation (30=x+3). Subtract 3 from both sides of the equation (30-3 = x+3-3). 3-3= 0, so x=27. Plug x back into the equation to check your answer (60= 2(27+3).

### Subject:Basic Math

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Question:

Three friends (Sam, Jennifer and Kyle) have a certain amount of marbles in their respective boxes. Sam has 30 marbles in her box and Jennifer has twice as many marbles as Sam in her box. If Kyle has half the amount of marbles that Sam has, in his box, which friend has the least amount of marbles?

Inactive
Shawn C.

Because Jennifer has twice as many marbles as Sam, you multiply 30 marbles (Sam's amount) by 2 which equals 60. Kyle has half the amount that Sam has, so you divide 30 by 2 which is equaled to 15. Out of the three friends, Kyle has the least amount of marbles.

### Subject:Biology

TutorMe
Question:

What does DNA and RNA stand for? What are the functions of these molecules? What base is included in RNA, but not included in DNA?

Inactive
Shawn C.

DNA stands for deoxyribonucleic acid and is the carrier of genetic information in the cell. RNA stands for ribonucleic acid and plays a role in protein synthesis. Uracil (U) is included in RNA, but not in DNA (Thymine is a base in DNA, instead).

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