Can someone help? 15 points! :)
1 answer:
Answer:
Step-by-step explanation:
Given.
(4x)/7 - 6 = -20
The x variable should be isolated on one side of the equation.
<u>Adding 6 to both sides of the equation.</u>
(4x)/7 - 6 + 6 = - 20 + 6
(4x)/7 = - 14
<u>Multiplying both sides of the equation by 7.</u>
(4x)/7 × (7) = - 14 × (7)
4x = - 98
<u>Dividing both sides of the equation by 4.</u>
(4x)/4 = - 98/4
x = - 24.5
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Answer:
Step-by-step explanation:
For normal distributions only, all data falls within approximately 68% of one standard deviation, 95% of two standard deviations, and close to 100% of three standard deviations. The standard deviation is far too small to represent two or three standard deviations, hence .
*Important: This problem would be unsolvable if the question did not say her cuts were normally distributed, because the information above is only applicable to normal distributions.