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# Tutor profile: Luis S.

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Luis S.
Music Tutor
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## Questions

### Subject:Basic Math

TutorMe
Question:

What does PEMDAS stand for?

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Luis S.

PEMDAS is an acronym for the order of operations, which stands for Please Excuse My Dear Aunt Sally. The order of operation goes as follows: paratheses, exponent, multiplication, division, addition, subtraction.

### Subject:Music Theory

TutorMe
Question:

What is the difference between simple and compound meter?

Inactive
Luis S.

In simple meter, the bottom number would be 4, which represents the note that gets the beat, and in this case, it would be the quarter note. An example would be 4/4time. In compound time, the bottom number is 8, which represents that the note that will get the beat is a dotted quarter note. An example of the meter would be 12/8 time.

### Subject:Music

TutorMe
Question:

What string instruments would perform in an orchestra?

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Luis S.

There are four types of string instruments in an orchestra: violin, viola, cello, and string bass.

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