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# Tutor profile: Cathy N.

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Cathy N.
High school tutor for four years; student at Johns Hopkins University
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## Questions

### Subject:PSAT

TutorMe
Question:

Fix the following sentence so it is grammatically correct: "I knew he had been studying: he looked sleep-deprived."

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Cathy N.

In this sentence, the use of the colon (:) is incorrect. When joining two independent clauses (in other words, two phrases that could be sentences on their own), you should use a semicolon (;) instead of a colon. Colons should be used when connecting an independent clause with a dependent clause (a phrase that can't be considered a sentence on its own).

### Subject:Writing

TutorMe
Question:

How can the following sentence be improved to be grammatically correct? "Caroline's hair was not as curly as Carly."

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Cathy N.

This sentence should be corrected so that it refers to the hair of both girls, not the girls themselves. Therefore, "Carly" should be changed to the possessive "Carly's" to show that we are comparing her hair in the sentence. By correcting the sentence to "Caroline's hair was not as curly as Carly's", you have fixed the grammatical error in the sentence.

### Subject:Pre-Algebra

TutorMe
Question:

A jug of milk is 3/4 full. If it currently contains 0.8 liters of milk, what is the jug's maximum capacity?

Inactive
Cathy N.

Since the milk jug is 3/4 full with 0.8 liters, you can divide 0.8 liters by 3 (0.8 liters/3 = 0.2666667 liters) to get the amount of milk in 1/4 of the jug. You can then multiply this number by 4 to get 4/4 (= 1) of the jar, or the maximum capacity of the jar (0.2666667 * 4 = 1.06666667 liters).

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