Answer:
x = 8 , y = 3
Step-by-step explanation:
3x + 2y = 30
3x - y = 21 -> y = 3x - 21
3x + 2 (3x - 21) = 30
3x + 6x - 42 = 30
3x + 6x = 30 + 42
9x = 72
x = 72/9 = 8
y = 3*8 - 21 = 24 - 21 = 3
∴ x = 8 & y = 3
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Step-by-step explanation:
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(C) "gaffe"
A gaffe is a mistake. The text would read "His conduct at the state dinner was a cavalcade of blunders, one gaffe following another until the evening ended" if this phrase were added. The comma signifies that the word that is missing is equivalent to the word error.
A social misstep can be described using either the words "blunder" or "gaffe." The answer is not (A). A "query" is an enquiry or question. (B) is the wrong answer. Gibe is slang for a mocking comment.
The answer is not (D). Tryst is often used to describe an amorous encounter. The answer is not (E). An expression of appreciation, respect, or admiration is referred to as a "tribute.".
Here's another question with an answer similar to this about passage analysis: brainly.com/question/3521530
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Concurrent validity is a type of evidence that can be gathered to defend the use of a test for predicting other outcomes. It is a parameter used in sociology, psychology, and other psychometric or behavioral sciences. Concurrent validity is demonstrated when a test correlates well with a measure that has previously been validated. The two measures may be for the same construct, but more often used for different, but presumably related, constructs.
