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xxMikexx [17]
3 years ago
9

Solve the system of equations by the substitution method. 12x + 6y= 15 - 2x=y+4

Mathematics
2 answers:
Alecsey [184]3 years ago
8 0

Answer:

12x + 6y = 15

-2x = y + 4 -------->   0 = 2x + y + 4  ------>  -y = 2x + 4 -------> y= -2x -4

12x + 6 ( -2x - 4 ) = 15

12x -12x - 24 = 15

-24 = 15

No solutions

Step-by-step explanation:

-24 does not equal 15 so this problem has no solutions.

lora16 [44]3 years ago
3 0

Answer:

there is no solution to this problem  

Step-by-step explanation:

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Help with question number one please
coldgirl [10]

Answer:

165 hits

Step-by-step explanation:

27.5% of 600 is 600 x 27.5 / 100 = 165

4 0
3 years ago
What is the slope of the line that goes through the points (1,-5) and (4,1)?
lesya692 [45]

Answer: m = 2

Step-by-step explanation:

What we know:

  • The slope needs to pass through the points (1, -5) and (4, 1)
  • There are 4 potential slopes given to us- only one is correct
  • We need to find the slope and make sure it is an option

How to solve:

By using the slope equation and the two points given to us, we can calculate the slope.

Process:

  • Set up equation                                                 (y2 - y1) / (x2 - x1)
  • Substitute                                                            (1 +5 ) / (4 - 1)
  • Simplify                                                                6 / 3
  • Simplest form                                                      2/ 1 =

Slope =                                                                          2

Solution: m = 2

4 0
2 years ago
Please help me....people are just using my points and im running out.....please help me!!
storchak [24]

Answer

I think that c would equal 4

Step-by-step explanation:

If you need the explanation, here it is:

When looking at the y part of the answer, you can see it goes up by three and that it is missing a point. This means that if the equation is linear, it goes up by one. Hope that's right!!

5 0
3 years ago
HELP ASAP!!!!!!!!!!
chubhunter [2.5K]

Answer:

7.5

Step-by-step explanation:

\sqrt{0\\.3} = 0.5477225575

Multiply it by 5

= 2.738612788

Square it

7.5 ft^{2}

Hope this helped. :)

5 0
3 years ago
Write an exponential expression: choose a number between 0 and 10 to be the base and another number between 0 and 10, different
lesya [120]

Answer:

2^4

2 * 2 * 2 * 2

Step-by-step explanation:

In the question above :

Write an exponential expression:

Base = number between 0 and 10

Exponent = number different from the base between 0 and 10

Let base = 2

Let exponent = 4

Hence, exponential expression will be

Base^exponent

2^4 (standard form)

Expanded form:

2 * 2 * 2 * 2 (multiply 2 in 4 places)

6 0
3 years ago
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