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# Tutor profile: Erica S.

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Erica S.
18 years Experience in Practical Mathematics and Problem Solving (i.e. Logistics)
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## Questions

### Subject:Basic Math

TutorMe
Question:

What does two plus three equal?

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Erica S.

### Subject:English

TutorMe
Question:

Why do I come after e except after c?

Inactive
Erica S.

That is a great question. The English language has a lot of rules that apply most of the time, but not all of the time and they allow our language more flexibility, which is a good thing! These "most of the time" rules can be as simple as a letter being pronounced differently depending on how it's used, to completely changing the spelling of a word depending on a specific context. Context is what the word means when we are using it in a sentence. So, with "i", "e" and "c", the order of the letters in "i" and "e" generally determine how the two letters combined are pronounced, which makes it easier for you to spell the word. "ie" is usually seen in words like "believe" where it makes an "Eee" sound, and other words like "friend" where it makes an "Eh" sound, or "Science" where you get an "Aye" sound. When you flip the letters to "ei" it usually makes an "ey" sound, just like in the examples in the saying, "neighbor" and "weigh". This rule isn't right 100% of the time, but it's a good rule of thumb to keep in mind to help you spell words containing "i" and "e" next to each other. Can you think of another example of "i" before "e"? What about after "c"? How about "ei"? Good! Now take five minutes to brainstorm all the words you can think of with "i" and "e" next to each other, either as "ie" or "ei". Write them down a let me know if you're done before the time is up so we can discuss.

### Subject:Algebra

TutorMe
Question:

What is fifteen percent of 160?

Inactive
Erica S.

In a problem like this, the words in the sentence can give us clues to help solve the problem. Words like "is" and "of" usually can be transformed into the equation itself, for example, where the word "is" appears in a sentence you can replace it with an equal sign, so our sentence would now look like "What = fifteen percent of 160?". The word "What" is the thing we are trying to find out, so let's turn "What" into "x". Does that make sense? Now, the sentence looks like this: "X = fifteen percent of 160". To further transform the sentence into an equation we take "of", which means multiply, so we're going to now write the sentence as "X = fifteen percent x 160". All clear so far? Ok good! Now, let's turn "fifteen percent" into a number so we can work it into the equation, as .15. We do this because when we say a number is a percentage we mean a percentage of a whole, and in this case the number 100 always represents the whole, so we divide 15 by 100, which gives is .15. If we were saying "sixty percent" then how would we make that a number? Right... we are going to divide 60 by 100, yes you can use a calculator :) exactly! 60 divided by 100 is .60, so sixty percent is .60. OK, so what was our sentence turned into an equation looking like now? ... close! Remember, "What" is the word we are solving for, the number we are trying to find. So, what did we call "What"? No worries, try again :) Close! It was "X", usually we in math we make the unknown thing we are solving for an X. So the sentence, try it with me... "X=.15x160". that looks a lot less confusing to figure out that a sentence full of words, huh? Ok, so time to figure this out! To get the answer we are going to multiply .15 by 160, which comes out to... that's exactly right! 24 is correct, great job! Do you have questions?

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