3 years ago

Use substitution to solve the system 2y - 8 = x 2x + 3y = -2

Mathematics

1 answer:

devlian [24]3 years ago

7 0

Answer:

x=2y-8

We use the substitution of x in the second equation

2*(2y-8)+3y= -2

4y-16+3y=-2

7y-16= -2

7y= -2 +16

7y=14

y=14Ș7

y=2

so x= 2*2 -8

x=4-8

x=-4

the solution is (x,y)=(-4, 2)

Step-by-step explanation:

You might be interested in

Verify x + 1⁄2 is a factor of P(x)= x2<br> + x -2

kumpel [21]

Answer:

Put p(x)=0.

Step-by-step explanation:

2x-1=0 will give x=1/2. This means, If x=1/2 is given to the polynomial p(x), it will give a zero. P(1/2)=0.

8 0

3 years ago

Which of the following can cause market failure?

nalin [4]

Answer: C

Step-by-step explanation: not enough information

5 0

3 years ago

the length of one side of a square field is represented by the expression 3 - 7 x what is an expression for the perimeter of the

iragen [17]

4(3-7x). Since there are 4 sides in a square, you multiply one length by 4 to get the perimeter. 4(3-7x) simplifys to 12-28x.

3 0

3 years ago

The yearly attendance at a local movie theater is 68,000 and grows continuously at a rate of 3.5% each year what is the approxim

asambeis [7]

$3.5 \times 8 - 68000$
the answer is 67972

7 0

3 years ago

Read 2 more answers

Bills family is driving across the country on vacation . They plan to stop at historical sites in each state they drive through.

maks197457 [2]

Answer: Blll's family has 70% of driving left.

Step-by-step explanation:

The total mileage of the trip = 3,000 miles.

miles driven so far = 900miles

Miles of diatance left = 3000- 900=2100

Percentage of driving left = Miles of diatance left / Total miles to cover x 100

=2100/3000 x 100

= 7/10 x100

70%

4 0

3 years ago