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Oksanka [162]
3 years ago
11

A student simplifies the given expression. Which statement BEST describes the error in the student's work? 12 + 24 ÷ 6(4) 36 ÷ 2

4 36/24 = 3/2
A) The student added before multiplying.
B) The student multiplied before dividing.
C) The student divided before multiplying.
D) The student simplified the answer incorrectly.
E) The student added incorrectly.
Mathematics
1 answer:
Marrrta [24]3 years ago
3 0
A. The student added before multiplying.
If they had multiplied 6 and 4 first, the next step would have been too divide. But since they added first, they got 36/24 or 3/2 when the answer should be 13.
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A survey is planned to estimate the proportion of voters who support a proposed gun control law. The estimate should be within a margin of error of ±5% with 90% confidence, and we do not have any prior knowledge about the proportion who might support the law. How many people need to be included in the sample?

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