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allochka39001 [22]
3 years ago
12

1 2/7 +2 1/3x +3/14+x=9

Mathematics
1 answer:
Genrish500 [490]3 years ago
8 0

Answer:

9/4

Step-by-step explanation:

1 2/7=9/7

2 1/3=7/3

--------------

9/7+7/3x+3/14+x=9

18/14+3/14+7/3x+3/3x=9

21/14+10/3x=9

10/3x=9-21/14

10/3x=9-3/2

10/3x=18/2-3/2

10/3x=15/2

x=(15/2)/(10/3)

x=(15/2)(3/10)

x=45/20

simplify

x=9/4

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What is the slope of the line through the points (-3,3) and (6,-8)
STatiana [176]

Answer:

\displaystyle \frac{-11}{9}

Step-by-step explanation:

       We will use the equation of change in y over change in x to solve for the slope of the line. Then, we will simplify.

\displaystyle \frac{y_{2}-y_1 }{x_2-x_1}

\displaystyle \frac{-8-3}{6--3}

\displaystyle \frac{-8-3}{6+3}

\displaystyle \frac{-11}{9}

8 0
2 years ago
Both lines pass through the point (-3,-4). one has a slope of 4 and the other has a slope of -1/4
Alchen [17]
If the question is to find the slope-intercept form of both lines, here's the answer:
Both lines pass through the point (-3,-4), so we can use these coordinates in both equations. The slope-intercept form is represented by y=mx+b, with m the slope, b the intersection of the line with Y'Y for x=0, y and x the coordinates of a point.
Let's first apply all these for the first line, with a slope of 4.
y = mx + b
y=-3; x=-4; m=4. All we need to do is find b.
-3 = 4(-4) + b
-3 = -16 + b
b=13
So the equation of the first line is y= 4x + 13.

Now, we'll do the same thing but for the second line:
y=-3; x=-4; m=-1/4, and we need to find b.
-3 = (-1/4)(-4) + b
-3 = 1 + b
b= -4
So the equation of the second line is y=(-1/4)x - 4

Hope this Helps! :)
3 0
4 years ago
Which is not an equation of the line going through (3, –6) and (1, 2)?
vodka [1.7K]
I do belive that it is C.
6 0
4 years ago
Read 2 more answers
Think about the function f(x) = 3 - 2x
Angelina_Jolie [31]

f(0) means the function output when the input is x = 0. This is the same as saying the y value when x = 0.

f(x) = 3-2x

f(0) = 3-2(0)

f(0) = 3

The point (0,3) is on the graph. This is the y intercept which is where the graph crosses the y axis. The y intercept always occurs when x = 0.

So in other words, the special name for f(0) is the y intercept.

6 0
4 years ago
Read 2 more answers
The circumference of the bike tire above is 83.524 inches. What is the radius of the bike tire?
dezoksy [38]
Divide 83.524 by pi then take half of that answer .
the answer should be 13.29 or 13.3
3 0
4 years ago
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