If the sales tax is 7% on all purchases, how much must you set aside for sales tax on $300? Show your work.
2 answers:
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For this case we find the expression that represents the cost of each printing press.
x: Be the variable that represents the number of programs to print
So:
Cost 1: Janet’s Print Shop
Cost 2: The Printing Press
If we want to find the number of programs for which the costs are the same, then we equate both equations:
Thus, for 150 programs the cost is the same.
Answer:
For 150 programs the cost is the same.
Answer:
Step-by-step explanation:
Let be the average of the sample, and the population mean will be
We know that:
gr
Let be the standard deviation and n the sample size, then we know that the standard error of the sample is:
Where
In this case we are looking for:
This is:
or
Now we get the z score
Looking at the tables for the standard nominal distribution we get