Answer:
Money Paid in Total = $45
Step-by-step explanation:
Firstly, the term Mark-up refers to the amount added to the cost price to cover the overheads and realize a profit.
A mark-up percentage is a percentage (%) that is used as a basis to determine the mark-up value.
Given
Cost of an Item = 60$
Markup % = 25% on cost
Hence, Mark up in $ = 60$*25%
= 15$
Therefore, Actual cost of an item = Cost of an item - Mark up on Item
= 60$ - 15$
= 45$
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Answer:
True
Step-by-step explanation:
Margin of error of a confidence interval:
The margin of error of a confidence interval has the following format:
In which z is related to the confidence level(the higher the confidence level the higher z is), s is related to the standard deviation and n is the size of the sample.
A higher confidence level leads to a larger margin of error, that is, a wider interval. The interval expands around it's lower and upper bounds, which means that if a value is part of a lower confidence interval(such as 95%), it will be part of the higher(such as 99%), and the answer to this question is true.
Answer:
the correct answer is use a calculator
Step-by-step explanation:
Answer:
y = -5x + 21
Step-by-step explanation:
The perpendicular slope is opposite of the inverse. The inverse of 1/5 is 5/1, and the opposite of that is -5/1.
So m = -5.
Then use point-slope form:
y + 4 = -5 (x - 5)
If you wish, convert to slope-intercept form:
y + 4 = -5x + 25
y = -5x + 21
Answer:
{-2,4,8}
Step-by-step explanation:
The range of a function represents all of the y-values.
In this case, you have y-values of (-2,4,-2, 8)
Since it hasn't been stated whether the function is continuous or not, we can just assume the function only has values at those points.
Thus the range is {-2,4,8}