Answer:
x=50
Step-by-step explanation:
A= 30+2x
B= x
Supplementary angles are angles that always add up to 180 degrees.
therefore, A + B=180 degrees
30 + 2x + x = 180: Now we solve
<em>30 + 3x =180 </em>
<em>subtract 30 from both sides</em>
3x=150
<em>divide by 3</em>
3x/3 = 150/3
x= 50
9/20=0.45
0.45×100=45
45/100 is the answer
ANSWER:
434.7kg total
STEP BY STEP:
48.3 times 9, this will get you the answer.
Answer: $ 7.20
Step-by-step explanation:
Multiply the cost ( 35.50) by 20% or 0.20 and you get your answer ( 7.20 ). Hope this helps!
Using the z-distribution, the 99% confidence interval of the population mean number of days it takes to find a job is (35.38, 44.62).
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:

In which:
is the sample mean.
is the standard deviation for the population.
In this problem, we have a 99% confidence level, hence
, z is the value of Z that has a p-value of
, so the critical value is z = 2.575.
The other parameters are:

Hence the bounds of the interval are:


More can be learned about the z-distribution at brainly.com/question/25890103
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