All categories

3 years ago

6x+3y=24 y=-2x+8 plz help

Mathematics

2 answers:

Whitepunk [10]3 years ago

8 0

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

(x,−2x+8)(x,-2x+8)

Equation Form:x=xy=−2x+8

Julli [10]3 years ago

6 0

Answer:

No Solution

Step-by-step explanation:

6x+3y=24....equation(1)

y=-2x+8....equation(2)

put equn(2) into equn(1)

6x+3(-2x+8)=24

combine the bracket and 3

6x-6x+24=24

combine the like terms

6x-6x=24-24

0=0

No Solution

You might be interested in

Factor the quadratic expression in the equation y=2x^2+28x+96 and use the factors to find the zeros of the equation. Then, use t

gavmur [86]

Answer:

$x=-7$

Step-by-step explanation:

We have been given an equation $y=2x^2+28x+96$ . We are asked to find the zeros of equation by factoring and then find the line of symmetry of the parabola.

Let us factor our given equation as:

$2x^2+28x+96=0$

Dividing both sides by 2:

$x^2+14x+48=0$

Splitting the middle term:

$x^2+6x+8x+48=0$

$(x^2+6x)+(8x+48)=0$

$x(x+6)+8(x+6)=0$

$(x+8)(x+6)=0$

Using zero product property:

$(x+8)=0\text{ (or) }(x+6)=0$

$x+8=0\text{ (or) }x+6=0$

$x=-8\text{ (or) }x=-6$

Therefore, the zeros of the given equation are $x=-8\text{ (or) }x=-6$ .

We know that the line of symmetry of a parabola is equal to the x-coordinate of vertex of parabola.

We also know that x-coordinate of vertex of parabola is equal to the average of zeros. So x-coordinate of vertex of parabola would be:

$\frac{-8+(-6)}{2}=\frac{-14}{2}=-7$

Therefore, the equation $x=-7$ represents the line of symmetry of the given parabola.

4 0

3 years ago

What is 2*2 please answer this question

vampirchik [111]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Indicar el número entero que corresponde a cada

anyanavicka [17]

Answer:

a)-20

b)+15

c)-3

d)-300

e)-15

f)-5000

g)-400

h)-250

i)+420

3 0

3 years ago

If you were to move use the substitution method to solve the following system choose the new equation after the expression equiv

yanalaym [24]

Solve x+4y = 13 for x by subtracting 4y from both sides.

We end up with x = -4y+13.

Since x and -4y+13 are the same, we can replace every x in the first equation with -4y+13

2x-3y = -29

2( x ) - 3y = -29

2( -4y+13 ) - 3y = -29 ... x is replaced with -4y+13

The answer is choice B

8 0

3 years ago

Tammy's allowance is $5.00. She did extra chores around the house and earned an

ikadub [295]

Answer:

5.50 this should help :p

8 0

3 years ago

Read 2 more answers