4 years ago

Estimate the solution to the system of equations. 4x−2y=8 2x+y=2

Mathematics

1 answer:

jasenka [17]4 years ago

8 0

Answer:

x = 3/2

y = -1

Step-by-step explanation:

Elimination

4x - 2y = 8 | ×1 |

2x + y = 2 | ×2 |

4x - 2y = 8

4x + 2y = 4

__________--

-4y = 4

y = 4/-4

y = -1

Subsitution

2x + y = 2

2x + (-1) = 2

2x = 2 + 1

x = 3/2

You might be interested in

Five times a number minus eight is the same as ten more than three times a number. Find the number.

serious [3.7K]

Answer:

Step-by-step explanation:

5(n-8)=3n+10

5n-40=3n+10

5n=3n+50

2n=50

n=25

5 0

3 years ago

Find the measure of each minor arc formed by a regular octagon inscribed in a circle. A. 15° B. 30° C.45° D. 60°

marin [14]

Your octagon has a central angle of 360 deg. Since you're speaking of an octagon, which implies that the octagon is made up of eight triangles, divide 360 deg by 8 to obtain the measure of each minor arc formed.

6 0

3 years ago

the length of a rectangle is 3 times its width. the perimeter is 55. find the length and width of the rectangle

Shkiper50 [21]

Answer:

Step-by-step explanation: L= length w= width p= perimeter

L=3W p=55CM

P. of rectangle= 2(l+w)=55cm

L+w= 55/2= 27.5 cm

3w+w=27.5cm

4w=27.5cm

w=27.5/4=6.875cm w=6.875cm L= 3w=6.875*3=20.625cm

4 0

3 years ago

Order the set of numbers from least to greatest:

valentina_108 [34]

5, 5/2, 2.71, 2 3/4
hope this helps

4 0

3 years ago

What is the simplest form of of this expression?

dangina [55]

Answer:

Step-by-step explanation:

7 0

3 years ago

​ Estimate the solution to the system of equations. 4x−2y=8 2x+y=2 ​

Estimate the solution to the system of equations. 4x−2y=8 2x+y=2