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Alex
3 years ago
6

Restaurants frequently add an​ 18% tip on the​ pre-tax bill when the party is 8 people or more. The tax is calculated based on t

he bill before the tip is included. Last​ night, friends went out to dinner and decided to split the bill evenly. If the bill without tax or tip was ​$ and the tax was ​%, how much did each person​ owe?
Mathematics
1 answer:
Misha Larkins [42]3 years ago
7 0
There is not enough information. Do you need an equation?
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find the ordered pairs for the x- and y-intercepts of the equation 3x - 2y = 18 and select the appropriate option below.
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Answer:

Step-by-step explanation:

3x - 2y = 18

x -int

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3x = 18

x = 6

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3(0) - 2y = 18

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y = -9

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Step-by-step explanation:

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DaniilM [7]

Answer:

Slope of PQ = 0

Slope of MN = infinity

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Step-by-step explanation:

for any two points  (x1, y1),  (x2, y2)given in coordinate plane slope is given by

y1 - y2/x1-x2\\\\For \ line \ PQ\\slope = 2 - 2/-8-4 = 0\\\\For \ line \ MN \\slope = 6 - (-8)/8-8 = 1/0 = infinity\\\\

For any line if slope is zero it is parallel  to X axis and perpendicular to Y axis

For any line if slope is infinity it is parallel  to Y axis and perpendicular to X axis

Also we know X and Y are perpendicular to each other.

Since slope of PQ is zero it is parallel  to X axis and perpendicular to Y axis

Since slope of MN is infinity it is parallel  to Y axis and perpendicular to X axis.

Thus two lines PQ and MN are perpendicular to each other.

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