A physics test is normally distributed. The class average was 79.3, and the standard deviation was 7.5. What percent of students
1 answer:
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The diameter of Jupiter is about 40 times the diameter of Earth's moon.
Answer:
$9
Explanation:
First, we need to find 70% of the original price of $30 using the following equation:
It means that Emma pays $21 less than the original price. So, she pays:
$30 - $21 = $9
Therefore, the answer is $9