When x = 8 y = 15
The way to figure this out is to subtract 12 by 5. That’s 7 so there’s a difference of 7 between both of the numbers.
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Answer:
The answers are :
A. 13 ⅓ cm3
B. 30 cm3
C. 10 cm3
D. 20 cm3
Step-by-step explanation:
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The margin of error is a statistic that expresses how much random sampling error there is in a survey's results. The Margin of error in this survey is 1%.
<h3>What is the margin of error?</h3>
The margin of error is a statistic that expresses how much random sampling error there is in a survey's results. The wider the margin of error, the less confident one should be that a poll result reflects the outcome of a population-wide survey.
The random sample of 2500 sports fans, out of which 61% prefer basketball over soccer, therefore, we can write n=2500 and p=0.61. Thus, the margin of error can be written as,
Hence, the Margin of error in this survey is 1%.
Learn more about Margin of Error:
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x + y = -10
2x - y = -8
-----------------Add
3x = -18
x = -6
Substitute x = -6 into x + y = -10
x + y = -10
-6 + y = -10
y = -4
Answer
x = - 6 and y = - 4