So when you work with variables (x, y or any other letter), when they're beside a number it usually means to multiply.
So 3y can also be written as 3(3). So 3 multiplied by 3 is equal to 9
So now our problem looks like this,
x/9.
Since we already know what x is equal to, our problem will look like this
18/9.
So now all we have to do is divide.
18 divided by 9 is 2
So therefore, your answer is 2.
I hope this helps :)
Answer:
<h2>-2/3 </h2>
Step-by-step explanation:
<h3>m=y2-y1/x2-x1
m=4-(-2)/-17-(-8)
m=4+2/-17+8
m=6/-9
m=-2/3 </h3>
Answer:
12-x=y
Step-by-step explanation:
Answer:
The sample size n= 2500
A survey with 2500 left-handed people guarantees the given margin error is 2%
Step-by-step explanation:
<u>Explanation:-</u>
The margin of error =
here for proportions , the standard deviation (σ) =
now The necessary sample size is
Given data the survey in order to get a margin of error of 2%
M.E = 0.02
<u>Conclusion</u>:-
The sample size n= 2500
A survey with 2500 left-handed people guarantees the given margin error is 2%