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elena-s [515]
3 years ago
11

What is the value of the expression when a = 6, b = 4, and c = 8? 2a/3b−c

Mathematics
1 answer:
Alenkasestr [34]3 years ago
3 0

Answer:

<em>3</em>

Step-by-step explanation:

\frac{2a}{3b-c} \\=\frac{2(6)}{3(4) - 8} \\=\frac{12}{12-8} \\=\frac{12}{4} \\=3

<em>I hope I was of assistance</em>!<u><em> #SpreadTheLove <3</em></u>

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Anyone know this one ?
Vedmedyk [2.9K]

The answer is B i.e. one

4 0
4 years ago
Solve the system of linear equations by substitution.<br> 3x + y = -9<br> y=5x+7
11Alexandr11 [23.1K]

Answer:

The solution is x = -2, y = -3

Step-by-step explanation:

Let's start with the equation 3x + y = -9

Substitute the y for 5x+7 seen in the second equation

Now you have 3x + (5x+7) = -9

Lets solve:

Let's add the x's

Now we have 8x + 7 = -9

Substracy seven from each side

Now we have 8x = -16

Now let's divide 8 on each side

Now we have x = -2

Now lets plug in -2 to the second equation

The second equation is y = 5x+7

When we plug in -2 we get y=5(-2)+7

We multiply

We now have y = -10+7

Add

y = -3

The solution is x = -2, y = -3

8 0
3 years ago
A line passes through the origin and has a slope of -3 what is the equation of the line that is perpendicular to the first line
Marianna [84]

Answer: y=\frac{1}{3}x+3

Step-by-step explanation:

The equation of the line is Slope-intercept form is:

y=mx+b

Where "m" is the slope and "b" the y-intercept.

The slopes of perpendicular lines are negative reciprocal.

Then, if the slope of the first line is -3, the slope of the other line must be:

m=\frac{1}{3}

Substitute the point (3,4) into the equation and solve for b:

4=\frac{1}{3}(3)+b\\ 4-1=b\\b=3

Then the equation of this line is:

y=\frac{1}{3}x+3

3 0
3 years ago
Read 2 more answers
|-5x-5|=45 what is the solutions
Paha777 [63]

Answer:-10

Step-by-step explanation:

45 +5=-5x

-5x=50

X=-10

7 0
3 years ago
Read 2 more answers
∠7= what degree does this equal
IceJOKER [234]

whats the shape or whatever it is


3 0
4 years ago
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