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2 answers:
Income per hour is: Per hour Pay+ Per hour tips= dollars
Therefore, if we include all deductions in one go we will get the net hourly income to be:
dollars
Therefore, in a 20 hour week, the net per week income is:
dollars
So, if you want to save $40.00/wk, the amount of discretionary income left per week is: dollars.
If you decide to save 15% of your realized income of $ 135/wk then your weekly saving will be:
Therefore, at this rate the monthly savings will be: Dollars
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Answer:
140
Step-by-step explanation:
To construct a subset of S with said property, we have two choices, include 3 in the subset or include four in the subset. These events are mutually exclusive because 3 and 4 can not both be elements of the subset.
First, let's count the number of subsets that contain the element 3.
Any of such subsets has five elements, but since 3 is already an element, we only have to select four elements to complete it. The four elements must be different from 3 and 4 (3 cannot be selected twice and the condition does not allow to select 4), so there are eight elements to select from. The number of ways of doing this is .
Now, let's count the number of subsets that contain the element 4.
4 is already an element thus we have to select other four elements . The four elements must be different from 3 and 4 (4 cannot be selected twice and the condition does not allow to select 3), so there are eight elements to select from, so this can be done in ways.
We conclude that there are 70+70=140 required subsets of S.