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natali 33 [55]
3 years ago
13

ASAP PLEASE 15 POINTS

Mathematics
2 answers:
charle [14.2K]3 years ago
7 0
The given set of equations:
y=-3x+1............(1)
y=2x-4 .............(2)

can be solved most conveniently by rewriting as
y =-3x+1 = 2x-4

We concentrate on the right equality, which is expressed in x only:
-3x+1 = 2x-4
Transpose and solve for x
1+4 = 2x+3x
5x=5
x=5/5=1
Substitute x=1 in the 
first equation: y=-3(1)+1=-2
second equation: y=2*x-4=2(1)-4=-2

So the solution is x=1, y=-2, or (1,-2)

alex41 [277]3 years ago
4 0

Answer:

(1,-2) I got a 100%

Step-by-step explanation:

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Answer:

y-coordinate = 0

Step-by-step explanation:

Consider the below diagram attached with this question.

Section formula:

If a point divides a line segment in m:n whose end points are (x_1,y_1) and (x_2,y_2), then the coordinates of that point are

(\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_1}{m+n})

From the below graph it is clear that the coordinates of end points are J(1,-10) and K(7,2). A point divides the line JK is 5:1.

Using section formula, the coordinates of that point are

(\frac{(5)(7)+(1)(1)}{5+1},\frac{(5)(2)+(1)(-10)}{5+1})

(\frac{35+1}{6},\frac{10-10}{6})

(\frac{36}{6},\frac{0}{6})

(6,0)

Therefore, the y-coordinate of the point that divides the directed line segment from J to k into a ratio of 5:1 is 0.

8 0
3 years ago
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no

Step-by-step explanation:

8 0
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The length of a rectangle is 4 less than twice the width. If the perimeter of the rectangle is 130, find the length of the recta
Alchen [17]

Answer:

Let L be the length of the rectangle and w be the width of the rectangle.

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Using perimeter formula of a rectangle which is P=2(L+W) you have:

P=2(L+W)

130=2(2W-1+W)

Solve equation above to find W

130=2(3W-1)

130=6W-2

130+2=6W

132=6W

W=22

From here you find L=2W-1=2x22-1=43

Only thing left is to find area A=LxW

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3 years ago
Please help I don’t understand
madam [21]
I don’t get it either
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2 years ago
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Finger [1]

Answer:

terrence will have to play 2900

Step-by-step explanation:

80% * 14500

14500-11600

2900

6 0
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