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Bas_tet [7]
3 years ago
8

What is the solution to the equation 3x+9-7x=2(x+6)

Mathematics
2 answers:
Tasya [4]3 years ago
5 0

Answer:

x=-1

Step-by-step explanation:

hello :

3x+9-7x=2(x+6)

3x+9-7x=2x+12

3x-2x-7x=12-9

-6x = 6

x=6/-6 = -1

Vera_Pavlovna [14]3 years ago
3 0

Answer:

x = - \frac{1}{2}

Step-by-step explanation:

Given

3x + 9 - 7x = 2(x + 6), that is

- 4x + 9 = 2x + 12 ( subtract 2x from both sides )

- 6x + 9 = 12 ( subtract 9 from both sides )

- 6x = 3 ( divide both sides by - 6 )

x = \frac{3}{-6} = - \frac{1}{2}

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Math problem time lol
guapka [62]

Answer:

Don't do it

it's a hacker

Step-by-step explanation:

5 0
3 years ago
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Hi guys please help me!! <br> I kinda need this thank yu so much!!
Basile [38]

Answer:

188.496

Step-by-step explanation:

A=2πrh+2πr^2=

A=2·π·3·7+2·π·3^2

A= 188.49556

Rounded up because 4th decimal is a 5.

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6 0
3 years ago
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The mean temperature for the first 7 days in January was 6 °C.
balandron [24]

Answer:

6.875° C

the mean of a set of data is calculated using

mean =

For the first 7 days the mean is 8 and the count = 7

8 =  ( cross- multiply )

sum = 8 × 7 = 56

Add on the temperature on the 8 th day to the sum and divide by 8 for mean

sum = 56 - 1 = 55

mean =  = 6.875° C

2nd question

Height of marble from the ground

An independent variable is the variable in an experiment that you change to see if it has an effect on the dependent variable. In this case, Jack wanted to see whether the position of the marble on the ramp (which would be the height) has an effect on the kinetic and potential energy of the marble, then the height would be the independent because it is what is being changed.

The dependent would be the kinetic and potential energy and the constant would be the type of marble.

3 0
3 years ago
What is 38.86 rounded to one decimal place
emmasim [6.3K]
38.9 
..........
Bcz 6 >5
:)
3 0
4 years ago
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Fill in the y values of the t-table for the function<br> y=3√x.
Lorico [155]

The table of values of the function y = ∛x is

x      y

-8    -2

-1      -1

0      0

1       1

8     2

<h3>How to fill in the y values?</h3>

The function is given as:

y = ∛x

When x = -8, we have:

y = ∛-8 = -2

When x = -1, we have:

y = ∛-1 = -1

When x = 0, we have:

y = ∛0 = 0

When x = 1, we have:

y = ∛1 = 1

When x = 8, we have:

y = ∛8 = 8

So, the table of values is

x      y

-8    -2

-1      -1

0      0

1       1

8     2

Read more about cubic functions at:

brainly.com/question/20896994

#SPJ1

7 0
2 years ago
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