ISEE Mathematics Achievement Question 141: Answer and Explanation

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Question: 141

3. If 3.4a + 8.7a = 38.72, a =

A. 2.9
B. 3.2
C. 3.5
D. 3.9

Correct Answer: B

Explanation:

B is correct.

3.4a + 8.7a = 38.72

12.1a = 38.72

a = 3.2