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OverLord2011 [107]
3 years ago
13

Y=-4x.-3 y= -2x + 1 What is y and x?

Mathematics
2 answers:
Jet001 [13]3 years ago
4 0
You would equal the equations together then solve for a variable.

-4x - 3 = -2x + 1

-4x + 2x = 1 + 3

-2x = 4
—— —-
-2 -2

x = -2

then take that x value and substitute it into any one of the equations.

Equation #1
y = -4(-2) -3
= 8 - 3
= 5

Equation #2
y = -2(-2) + 1
= 4 + 1
= 5
slega [8]3 years ago
3 0

Answer:

The value of x=-2  and the value of y=5

Step-by-step explanation:

we have

Y=-4x-3 -----> equation A

y= -2x + 1 -----> equation B

Solve the system of equations by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

The intersection point is (-2,5)

see the attached figure

therefore

The value of x=-2 and the value of y=5

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A cereal box manufacturer changes the size of the box to increase the amount of cereal it contains. The expressions n and ​n, wh
Alisiya [41]

10.5 small boxes equals the same amount of cereal in a large box

<h3>How to determine the value</h3>

From the information given, let:

n is the number of smaller boxes

We know that:

  • 12 + 7.6n
  • 6 + 8n

Then,

12 + 7.6n = 6 + 8n

collect like terms

8n - 7. 6n = 12 - 6

0. 4n = 6

n = 6/ 0. 4

n = 15

The amount of cereal in a large box is;

6 + 8n = 6 + 8 (15) = 126 ounces

The amount of cereal in the smaller box is 12 ounces

Divide the volume of the larger box by the volume of the smaller box;

= 126/ 12

= 10. 5 smaller boxes

Hence, 10.5 small boxes equals the same amount of cereal in a large box

The complete question:

A cereal box manufacturer changes the sizeof the box to increase the amount of cereal it contains. The equations 12 + 7.6n and 6 + 8n, where n is the number of smaller boxes, are both representative of the amount of cereal that the new larger box contains. How many smaller boxes equal the same amount of cereal in the larger box?

Learn more about word problem here:

brainly.com/question/13818690

#SPJ1

5 0
2 years ago
WHAT IS FUN ABOUT MATH
Andre45 [30]

Answer:

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6 0
3 years ago
Read 2 more answers
The graph of r = -10 cos θ has which of the following characteristics?
Ronch [10]

Step-by-step explanation:

If we convert

r =  - 10 \cos(x)

to a Cartesian equation,

{r}^{2}  =  - 10 r \: \cos(x)

{x}^{2}  +  {y}^{2}  =  - 10x

{x}^{2}  + 10x +  {y}^{2}  = 0

{x}^{2}  + 10x + 25 +  {y}^{2}  = 25

(x + 5) {}^{2}  +  {y}^{2}  = 25

So we have a circle with center (-5,0), with a diameter of 10.

8 0
2 years ago
(2.3 x 10 to the power of 4) times ( 1.5x10 to the power of minus 3) in standard form
Eduardwww [97]

Answer:

3.45\times10

Step-by-step explanation:

(2.3  \times 10^{4}) \times ( 1.5 \times10^{-3} )= 2.3\times1.5\times10^{4}\times10^{-3}

                                        = 3.45\times  10^{((4)+(-3))}

                                        =3.45\times10

6 0
3 years ago
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vivado [14]

Answer:

student a answered correctly

Step-by-step explanation:

student b didn't multiply the crossproducts

6 0
3 years ago
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