ISEE Mathematics Achievement Question 329: Answer and Explanation
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Question: 329
1. For all real numbers n, $n = 10n - 10.
$7 =
- A. 70
- B. 60
- C. 17
- D. 7
Correct Answer: B
Explanation:
B Don't be scared off by these types of questions! Simply follow the directions and plug numbers into the equation where specified. In this case, replace n with the given number (7). Thus, the equation should read $7 = 10(7) - 10. Simplify the equation to $7 = 70 - 10 = 60. The correct answer is (B).