Anthony decided to buy two DVDs that we're not included in the deal. His price was $21.60. The sales tax is 8 percent. What was
2 answers:
Answer: $20
Step-by-step explanation:
Given : The price of two DVDs after tax was added = $21.60 (1)
The sales tax rate= 8% = 0.08 [∵ To convert percent into decimal , we divide it by 100]
Let x be the cost of two DVDs ,
Then tax amount = sales tax rate x Cost of two DVDs
i.e. tax amount = 0.08x
Now , The cost of two DVDs after sales tax will be : Cost of two DVDs+ Tax amount
x+0.08x = (1+0.08)x =1.08x (2)
From (1) and (2) , we get
Hence, the cost of the two DVDs before the sales tax was added was $20 .
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.
where
is your gross pay.
is the number of hours that you worked.
To complete the table, we just need to evaluate the function at the given hours; in other words, we are going to replace with the number of hours in our linear function:
We can conclude that yous should fill your table as follows:
<span>Number of Hours
0
3
5
7
10
12
</span><span>
Gross Pay
0
24
40
56
80
96
2. Remember that the domain of a function are the set of the x-values of the function; the range of a function are the set of y-values of the function. From our previous point, we can infer that the ordered pairs of the function are: (0,0), (3,24), (5,40), (7,56), (10,80), and (12,96). The y-values and hence the range of the function are: 0, 24, 40, 56, 80, 96. Remember that in the quadrant I both the x-coordinates and the y-coordinates are positive. Since all the coordinates of our points are positive, we can conclude that the correct answer is:
</span><span>d. 0, 24, 40, 56, 80, 96; Quadrant I</span>
where
To complete the table, we just need to evaluate the function at the given hours; in other words, we are going to replace
We can conclude that yous should fill your table as follows:
<span>Number of Hours
0
3
5
7
10
12
</span><span>
Gross Pay
0
24
40
56
80
96
2. Remember that the domain of a function are the set of the x-values of the function; the range of a function are the set of y-values of the function. From our previous point, we can infer that the ordered pairs of the function are: (0,0), (3,24), (5,40), (7,56), (10,80), and (12,96). The y-values and hence the range of the function are: 0, 24, 40, 56, 80, 96. Remember that in the quadrant I both the x-coordinates and the y-coordinates are positive. Since all the coordinates of our points are positive, we can conclude that the correct answer is:
</span><span>d. 0, 24, 40, 56, 80, 96; Quadrant I</span>