System Questions and Answers (Q&A)

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Statement 2 alone is sufficient but statement 1 alone is not sufficient to answer the question asked.

As usual, try to simplify the question. In this case, Dividing by five isnt all that important here: if we can find the value of x+y, we can divide it by five. So well look for the value...
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Both statements 1 and 2 together are sufficient to answer the question but neither statement is sufficient alone.

Each of the two statements is insufficient on its own. In each case, its impossible to isolate the term r-s, and each has two variables in a single linear equation. Taken...
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Antagonistic pairs

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Statements 1 and 2 are not sufficient to answer the question asked and additional data is needed to answer the statements.

Statement (1) is insufficient: Toms age ( T) is given in terms of a second variable we have no other information about. We can write it as an equation for future...
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To pump blood throughout the body
To filter nutrients from digested food into the blood
To exchange gases with the atmosphere
To break down food with digestive juices and muscles
To reach every cell in the body
To carry blood from the heart to the body
To carry...
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Activities

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