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Sav [38]
3 years ago
10

Devin wants to use his 12% employee discount to buy a video game that is priced at $57.80. A 8.75% sales tax is applied to the d

iscounted price. What will be the total cost of the video game, including the sales tax?
Mathematics
2 answers:
mariarad [96]3 years ago
6 0
First you need to find the price of the video game after Devin’s employee discount. To do this you multiply the original price times the discount:

$57.80 * 0.12 = $6.94

Now subtract the discount from the original price:

$57.80 - $6.94 = $50.86

Now we need to multiply the discounted price and the sales gas rate to see how much taxes will be added to our purchase:

$50.86 * 0.0875 = $4.45

Finally we add our discounted price plus the sales tax to find the total cost of the video game after the employee discount:

$50.86 + $4.45 = $55.31
lesantik [10]3 years ago
5 0

Answer:

43.73

Step-by-step explanation:

use a calculater

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Elodia [21]

Given:

The table of values for the function f(x).

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The values f^{-1}(f(3.14)) and f(f(-7)).

Solution:

From the given table, it is clear that the function f(x) is defined as:

f(x)=\{(-14,11),(-7,-12),(-12,-5),(9,1),(10,-2),(-2,13)\}

We know that if (a,b) is in the function f(x), then (b,a) must be in the function f^{-1}(x). So, the inverse function is defined as:

f^{-1}(x)=\{(11,-14),(-12,-7),(-5,-12),(1,9),(-2,10),(13,-2)\}

And,

f^{-1}(f(a))=f^{1}(b)

f^{-1}(f(a))=a              ...(i)

Using (i), we get

f^{-1}(f(3.14))=3.14

Now,

f(f(-7))=f(-12)

f(f(-7))=5

Therefore, the required values are f^{-1}(f(3.14))=3.14 and f(f(-7))=5.

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3 years ago
What is the best estimate for the width of your index finger
Len [333]
I don’t know for sure by 1 cm is a good guess.
8 0
3 years ago
Please help guys need help
dmitriy555 [2]

Answer:

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B)  The slope of 20 dollars per hour means that for every hour, the price of the service call increases by 20 dollars (or you could say the price of the service call is 20 dollars every hour, both work.)

Step-by-step explanation:

Recall that slope is y2 - y1 / x2 - x1.

Excellent. We are provided with two points: (1, 60) and (3, 100). Let’s enter this into our formula.

Slope = (100 - 60) / (3 - 1) = 40 / 2 = 20.

Now, to determine what the slope means, we can look at the axis titles on the graph. The x axis title is hours, or time in hours. The y axis title is price of the service call in dollars. Therefore, the slope is price (in dollars) per time (in hours).

This can be restated as: The slope of 20 dollars per hour means that for every hour, the price of the service call increases by 20 dollars (or you could say the price of the service call is 20 dollars every hour, both work.)

Hope this helps!

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3 years ago
3. 'a' and 'b' are the intercepts made
Julli [10]

Given:

'a' and 'b' are the intercepts made  by a straight-line with the co- ordinate axes.

3a = b and the line  pass through the point (1, 3).

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The equation of the line.

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The intercept form of a line is

\dfrac{x}{a}+\dfrac{y}{b}=1         ...(i)

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vivado [14]

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7 0
3 years ago
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