Find the slope from the points given: (18, -5), (18, 20)

Mathematics

1 answer:

Ivahew [28]3 years ago

3 0

Answer:

UNDEFINED

Step-by-step explanation:

change in y over the change in x is how you'd find slope, however, x is the same in both of these, making this a limitation not an equation, therefore the slope is undefined 18-18 = 0 -> Anything divided by zero as a slope is undefined.

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Ninety-three passengers rode in a train from City A to City B. Tickets for regular coach seats cost $115. Tickets for sleeper ca

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To solve this, we must set up a Systems of Equations problem
Let's say C stands for Coach seats bought and S stands for sleeper cars bought
Here are our equations we have enough information to make.
c + s = 93
115c + 290s = $20,320
Lets solve for Coach seats first
To do that we need a value for s
In the first equation, s = 93 - c
Lets plug that in for S in the second equation
115c + 290(93 - c) = $20,320
Distribute and simplify
115c + 26,970 - 290c = $20,320
Combine like terms
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divide
c = $\frac{-6650}{-175}$
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We just found out 38 coach seats were bought.
Plug in 38 for C in this equation ⇒ 115c + 290s = $20,320 to find S
115(38) + 290s = $20,320
Distribute and Simplify
4,370 + 290s = $20,320
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Divide
S = $\frac{15950}{290}$
S = 55
We just completed the problem!
38 Coach seats were bought and
55 Sleeper car seats were bought.

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