When you're looking for the percent markup, you subtract the old price from the new price ($70.20-$65=$5.20). Then you put the difference over the original price ($5.20/$65) and multiply it by 100. Your answer is 8% markup.
Answer:
Now we can calculate the p value with the following probability taking in count the alternative hypothesis:
For this case since the p value is large enough we have enough evidence to FAIL to reject the null hypothesis and we can't conclude that we have significant differences between the two proportions analyzed.
Step-by-step explanation:
Information provided
represent the number of New Yorkers familiar with the brand
represent the number of Californians familiar with the brand
sample of New Yorkers
sample of Californians
represent the proportion New Yorkers familiar with the brand
represent the proportion of Californians familiar with the brand
represent the pooled estimate of p
z would represent the statistic
represent the value
System of hypothesis
We want to verify if the two proportions of interest for this case are equal, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic would be given by:
(1)
Where
Repalcing the info given we got:
Now we can calculate the p value with the following probability taking in count the alternative hypothesis:
For this case since the p value is large enough we have enough evidence to FAIL to reject the null hypothesis and we can't conclude that we have significant differences between the two proportions analyzed.
Answer:
first term of the pattern (T₁) : 10
Step-by-step explanation:
T₁ ; 1 ; -6 ; T₄ ; -14
1-T₁ ; -6-1 ; T₄-(-6) ; -14 -T₄ (First Tₙ-Tₙ₋₁)
-8+T₁ = T₄+13 = -2T₄-20 (2nd Tₙ-Tₙ₋₁ is constant)
T₄+13 = -2T₄-20 3T₄ = -33 T₄ = -11
-8+T₁ = T₄+13 -8 + T₁ = -11 + 13 = 2
T₁ = 10
Answer: 5, 8
<u>Step-by-step explanation:</u>
The difference between 3 times a number and -8 is BETWEEN 23 and 32
Note: "difference" means subtraction --> 3x - (-8) --> 3x + 8
23 < 3x + 8 < 32
15 < 3x < 24 <em> subtracted 8 from all 3 sides</em>
--> 5 < x < 8 <em>divided 3 from all 3 sides</em>
It’s automatically the first one, because a non-dotted line means it can be equal to, and it’s shaded up meaning it’s greater than.