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Grace [21]
3 years ago
10

7x-3y=12 Need graphing or explaining how to do it bc I am confused.

Mathematics
2 answers:
katrin [286]3 years ago
7 0

Answer:

Take two points and connect them with a line.

Step-by-step explanation:

We can take the points (0,-4) and (1,-\frac{5}{3}). Now we can connect the two points with a line and we get our graph.

Ronch [10]3 years ago
6 0

Answer:

(See the third picture)

Step-by-step explanation:

Start by turning everything to slope-intercept form:

7x-3y=12\\-3y=-7x+12\\y=\frac{7}{3}x-4

Next, plot down the y-intercept on the graph (which in this case is -4):

(The y-intercept is the point where a line crosses the y-axis, thus, the y-intercept must be (0, y))

(See the first picture)

Next up, plot down the next point with the slope, recall that the graph is rise over run, or more specifically, y over x.

The slope is 7/3, the rise is 7 and the run is 3, so to draw the next point, start at your y-intercept, and go 7 units up, and 3 to the right, the next point should look like this:

(See the second picture)

And finally, draw a straight line across both points:

(See the third picture)

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soldier1979 [14.2K]

Answer:

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5 0
3 years ago
Can someone help me with this problem please?
Tom [10]

Answer:

senior tickets sold: 12

child tickets sold:8

Step-by-step explanation:

Let

x= amount of senior tickets sold

y= amount of child tickets sold

For the first equation, it should look like:

200=14x+4y

For the second equation, it should look like:

92=7x+y

So this is a systems of equations problem. So I will use substitution as it is easier:

1.) Take one of the equations (in this case ill take 92=7x+y) and make one variable have a value, in this case ill isolate the y.

(-7x)92=7x+y(-7x)

y=92-7x

2.) Take the value of y and plug it into "y" into the other equation to solve "x"

200= 14x + 4(92-7x)\\200=14x+368-28x\\(-368)200=-14x+368(-368)\\(-\frac{1}{14})* -168=-14x*(-\frac{1}{14} )\\\\x=12

<u><em>(editor's note:instead of dividing it by 14, I multiply by 1/14 as it would look complicated in the equation solving steps)</em></u>

3.) Then plug the value of "x" to one of the equations to solve for "y" (which I'll use the 92=7x+y)

92=7(12)+y\\(-84)92=84+y(-84)\\y=8

7 0
3 years ago
Read 2 more answers
If p = 10 - 3y, work out p when =-10
adell [148]

Hello.

Plug in the value of p:

\mathrm{-10=10-3y}

Now, all we have to do is solve the equation for y.

First, let's add 10 to both sides:

\mathrm{-10+10=10+10-3y}

\mathrm{0=20-3y}

Now, add 3y to both sides:

\mathrm{3y=20}

Divide both sides by 3:

\Large\boxed{y=\frac{20}{3} }

I hope it helps.

Have a nice day.

\boxed{imperturbability}

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tatyana61 [14]

The answer is 12 :)

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