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Rasek [7]
3 years ago
14

What is the difference between these two linear equations? Y=3x - y=-3x

Mathematics
1 answer:
Rashid [163]3 years ago
3 0
Y=3x has a positive slope, and Y=-3x has a negative slope.
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Solve and find a solution for x:<br> 3x + 5 = 11
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Answer:

x = 2

Step-by-step explanation:

3x + 5 = 11

     -5      -5

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3x = 6

/3     /3

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x = 2

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Find the value of x. Show your work.
atroni [7]

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Step-by-step explanation:

x+(x+70)+28=180

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6 0
3 years ago
Jack and Jill live 126 km apart. They want to leave their homes at the same time,
Digiron [165]

Answer:

Both will leave their homes to meet on time at 9 am  

Step-by-step explanation:

Given as, Distance between Jack  and Jill = 126 km

Speed of Jack rides = 18 kilometers per hours

Speed of Jill rides     = 24 kilometers per hours

Let the distance travel by Jack = x km

And the distance travel by Jill  =  (126 - x ) km

Time taken by Jack and Jill = T hours

Now , Distance = Speed × Time

So,     x = 18 × T

And  126 - x = 24 × T

Or,    126 - x =  24 × \frac{x}{18}

Or,    126 - x =  x × \frac{4}{3}

Or,    378 - 3x = 4x

Or,    378 = 7x

i.e x = \frac{378}{7} = 54 km

And distance travel by Jill = 126 - 54 = 72 km

So, time taken by Jack = \frac{x}{18} = \frac{54}{18}

Or, Time taken by Jack = 3 hours

Similarly Time take by Jill = \frac{72}{24} = 3 hours

∵ Both Jack and Jill will take 3 hours to meet at 12 : 00 pm

Hence, Both will leave their homes to meet on time at 9 am   Answer

7 0
3 years ago
Beth has 250 comic books in her collection. She begins to sell 20 of them each week. Martin has 80 comic books in his collection
Nuetrik [128]
Well, after doing all that math, here is what I came up with, I hope this helps! :) -1600x^2+28265x-21830
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3 years ago
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