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Alex Ar [27]
3 years ago
13

While vista his sister in Chicago, Marcus found a t-shirt that cost $ 12.00. If Marcus had to pay 6.25 % in sales taxes , how mu

ch was the tax
Mathematics
1 answer:
ddd [48]3 years ago
8 0
0.75 was the tax and 12.75 in total, correct me if I am wrong..
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zloy xaker [14]

To answer this question, you need to write a linear equation (because the graph is a visibly straight line) that models this situation, then plug in 12.

The general format for a linear equation is y=mx+b, where m is the slope and b is the y intercept.  The y intercept of a line is where it crosses the y axis; for this line, it crosses the y axis at (0, 0) so the y intercept is 0.

To find the slope, use the slope equation: (y2-y1)/(x2-x1).  For y1, y2, x1, and x2, just pick any two points on the line.  We will use (1, 30) and (2, 60):

(60-30)/(2-1)

30/1

30

The line is y=30x.

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y=30(12)

y=360

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Hope this helps!!

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3 years ago
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Sedbober [7]

Answer:

The window should be positioned 4 1/8 feet far from each edge of the wall.

Step-by-step explanation:

Since a construction crew is placing a square in a wall for a new window, which is 3 1/8 feet wide, while the wall has a length of 11 3/8 feet, and the crew wants to position the window at the center of the wall, to determine how far from each edge of the wall should the window be positioned, the following calculation must be performed:

1/8 = 0.125

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(11,375 - 3,125) / 2 = X

8.25 / 2 = X

4.125 = X

Therefore, the window should be positioned 4 1/8 feet far from each edge of the wall.

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2 years ago
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My name is Ann [436]

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Dvinal [7]

Answer:

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Step-by-step explanation:

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postnew [5]

Answer:

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Step-by-step explanation:

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