Mathematics, 16.07.2021 09:20 draveon353

Which ordered pair is the best estimate for the solution to the system?

Answers: 2

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Answers

Answer from: veronica25681

See explanation

Step-by-step explanation:

13x + 6y = - 30 (1)

x - 2y = -4 (2)

Multiply (2) by 3

3x - 6y = -12 (3)

13x + 6y = - 30 (1)

Add (3) and (1) to eliminate y

3x + 13x = -12 - (-30)

16x = -12 + 30

16x = 18

x = 18/16

x = 1.125

Substitute x = 1.125 into (2)

x - 2y = -4 (2)

1.125 - 2y = -4

-2y = -4 - 1.125

-2y = -5.125

y = -5.125/-2

y = 2.5625

Answer from: Quest

it is a reproduction.

step-by-step explanation:

Select answer from the top-down menu to correctly complete the statementsa scale factor would it be

Answer from: Quest

answer: e 9, 5.75

step-by-step explanation:

step 1

find the variation ab in the x coordinate

delta x=(x2-x1)=10-> 8 units

find the variation ab in the y coordinate

delta y=(y2-y1)=6-> 2 units

step 2

find the coordinates point c

x coordinate

cx=ax+delta x*2/> cx=2+8*(2/> cx=3

y coordinate

cy=ay+delta y*2/> cy=4+2*(2/> cy=4.25

the coordinates of point c are (3,4.25)

step 3

find the coordinates point d

x coordinate

dx=ax+delta x*4/> dx=2+8*(4/> dx=4

y coordinate

dy=ay+delta y*4/> dy=4+2*(4/> dy=4.5

the coordinates of point d are (4, 4.5)

step 4

find the coordinates point e

x coordinate

ex=ax+delta x*4/> ex=2+8*(6/> ex=5

y coordinate

ey=ay+delta y*4/> ey=4+2*(6/> ey=4.75

the coordinates of point e are (5, 4.75)

step 5

find the coordinates point f

x coordinate

fx=ax+delta x*4/> fx=2+8*(8/> fx=6

y coordinate

fy=ay+delta y*4/> fy=4+2*(8/> fy=5

the coordinates of point f are (6,5)

step 6

find the coordinates point g

x coordinate

gx=ax+delta x*4/> gx=2+8*(10/> gx=7

y coordinate

gy=ay+delta y*4/> gy=4+2*(10/> gy=5.25

the coordinates of point g are (7,5.25)

step 7

find the coordinates point h

x coordinate

hx=ax+delta x*4/> hx=2+8*(12/> hx=8

y coordinate

hy=ay+delta y*4/> hy=4+2*(12/> hy=5.5

the coordinates of point h are (8,5.5)

step 8

find the coordinates point i

x coordinate

ix=ax+delta x*4/> ix=2+8*(14/> ix=9

y coordinate

iy=ay+delta y*4/> iy=4+2*(14/> iy=5.75

the coordinates of point i are (9,5.75)

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