Consider the following pair of equations.
Y = x + 4
Y = -2x - 2
Explain how you will solve the pair of equations by substitution. Show all the steps and write down the solution in (x, y) corn.

Answers

Answer 1

Answer:

(- 2, 2 )

Step-by-step explanation:

Given the 2 equations

y = x + 4 → (1)

y = - 2x - 2 → (2)

Substitute y = x + 4 into (2)

x + 4 = - 2x - 2 ( add 2x to both sides )

3x + 4 = - 2 ( subtract 4 from both sides )

3x = - 6 ( divide both sides by 3 )

x = - 2

Substitute x = - 2 into either of the 2 equations abd evaluate for y

Substituting into (1)

y = - 2 + 4 = 2

solution is (- 2, 2 )


Related Questions

Carolina va a repartir entre sus estudiantes una barra de chocolate, a Valeria le da 5/18, a Camila le da 1/3, a Carlos 2/9 y a Pedro 1/6. Al ordenar los estudiantes, desde el que recibió más chocolate hasta el que recibió menos, se obtiene:

Answers

Respuesta:

Camila> Valeria> Carlos> Pedro

Explicación paso a paso:

Dado que :

Valeria = 5/18

Camila = 1/3

Carlos = 2/9

Pedro = 1/6

Podríamos convertir las acciones recibidas a decimal para facilitar la comparación:

Valeria = 5/18 = 0,27777

Camila = 1/3 = 0.3333

Carlos = 2/9 = 0,2222

Pedro = 1/6 = 0.16666

Comparando los decimales:

0,3333> 0,2777> 0,2222> 0,16666

Camila> Valeria> Carlos> Pedro

(HALP ILL GIVE BRAINLY!! ITS A MULTIPLE CHOICE)

Answers

Answer:

(1) is the answer

hope it helps

Step-by-step explanation:

(1)

It's the first one. Hope this helps!!

Please someone help please

Answers

Answer:

subtract

Step-by-step explanation:

Answer:

Its just to subtract and thats all.

The ratio of potatoes to onions is 1:2 respectively if there are 14 onions how many photatoes are there

Answers

If there are 14 onions there will be7 potatoes

Answer:

7

Step-by-step explanation:

The ratio of potatoes to onions is 1:2, meaning there are twice as many onions as potatoes.

[tex]\frac{\text{potatoes}}{\text{onions}}=\frac{1}{2}=\frac{x}{14}[/tex]

The fraction on the right is equivalent to 1/2, so the numerator is half the denominator.  There are 7 potatoes.

Which of the following statements is true? Select all that apply.

To find the diameter of a circle, divide its circumference by π or 3.14.
To find the diameter of a circle, divide its circumference by pi or 3.14.

The radius of a circle is twice its diameter.
The radius of a circle is twice its diameter.

The circumference of a circle is greater than its diameter.
The circumference of a circle is greater than its diameter.

The diameter of a circle is twice its radius.
The diameter of a circle is twice its radius.

The circumference of a circle is twice its radius.

Answers

Answer:

the answer is the 1st one

Will Give Brainliest
Let ​ x2+8x=7 .​

What values make an equivalent number sentence after completing the square?
Enter your answers in the boxes.

​​x2+8x+ ? ​= ​?

Answers

Answer:

4/6

Step-by-step explanation:

im smart trust

5. Write two fractions that are equivalent to
10. Describe how you can show they are
equivalent.

Answers

Answer:

equivilent to what?

Step-by-step explanation:

Two sides of a triangle have length 10 and 17. What is the range of the length of the 3rd side

Answers

Answer:

13.7477270849 to 19.7230829233.

Step-by-step explanation:

1. Using the pythagorean theorem, a²+b²=c², we try different combinations of given lengths 10 and 17.

2. If 10 and 17 are legs and 10²+17²=√389 = 19.7230829233, then c=19.7230829233.

3. If 10 is a leg and 17 is a hypotenuse,

10²+b²=17²

100+b²=289

b²=189

b=13.7477270849

4. The case of 17 is a leg and 10 is a hypotenuse is not possible because the hypotenuse is the longest side.

5. The range of the length of the 3rd side is 13.7477270849 to 19.7230829233.

3,200 g = ____________ kg

12 L = ____________ mL

200 cm = ____________ m

70,000 g = ___________ Kg

100 dL =_____________ L

60 m =______________ mm

Answers

Answer:

3,200 g = 3.2kg

12 L = 12,000mL           200 cm =2m          70,000 g = 70Kg 100 dL =10 L                        60 m =60,000mm    a little conversion table for you/ Conversion Tables and Methods to Use when converting

from Metric Units to Metric Units (Volume)

 

Some terms to remember

Meter – Length

Kilo – Thousand

Liter – Volume

Milli – Thousand

Gram – Mass/Weight

Centi – Hundred

 

Celsius – Temperature

 

Deci – Ten

 

Measure of Volumes

10 milliliters (ml) =

1 centiliter (cl)

10 centiliters =

1 deciliter (dl) = 100 milliliters

1 liter =

1000 milliliters

1 milliliter =

1 cubic centimeter

1 liter =

1000 cubic centimeters

100 centiliter =

1 liter (L) = 1,000 milliliters

1000 liters =

1 kiloliter (km)

 

Operations for Volume

Answer:

Step-by-step explanation:

3,200 g = 3.2 kg

12 L = 12000 mL

200 cm = 2 m

70,000 g =70 Kg

100 dL =10 L

60 m =60000mm

I need help with all 8!

Answers

1) D
2)
3) B
4 ) F
5)C
6) F
7) D
8) C

I'm not sure about questions 4 and 7, but they may be correct.

I couldn't because I couldn't see the 2nd question

chelsey needs 18 3/4 grams of chemical x for a science project she found 5 1/2 grams in one container and 11 1/4 grams in another container how much more does she need​

Answers

Answer: C=2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

5 1/2 + 11 1/4 = 16 3/4

18 3/4 - 16 3/4 = 2

A factory manufactures 9 x 10^5 packs of gum each month. They send these out to 16 different distribution centers. If each distribution center gets the same number of packs, how many are sent to each center?

Answers

Answer:

The answer would be A.

Step-by-step explanation:

You would take 9 x 10^5 = 900000 and divide that by 16 to get 56250.

After that, you move the decimal over by 4 to make it a number with only one number above zero in front of the decimal to make 5.625 (negate the 0 bc it does not mean anything after you moved the decimal over)

Since you moved it over by four places, the exponent next to the 10 will be 4, making the final answer 5.625 x 10^4

Good luck and hope this helps!!

I'd rather be listening to music than this du.mb stuffff

Answers

I don't know the answer but same

Sorry ✨

solve the triangle give the measure of y

Answers

Given:

In triangle [tex]BGU,BG=x,GU=7,BU=y,m\angle U=90^\circ,m\angle B=44^\circ[/tex].

To find:

The value of y.

Solution:

In a right angle triangle,

[tex]\tan \theta=\dfrac{Perpendicular}{Base}[/tex]

In triangle BGU,

[tex]\tan B=\dfrac{GU}{BU}[/tex]

[tex]\tan 44^\circ=\dfrac{7}{y}[/tex]

[tex]0.966=\dfrac{7}{y}[/tex]

Isolating y, we get

[tex]y=\dfrac{7}{0.966}[/tex]

[tex]y=7.2463[/tex]

[tex]y\approx 7.2[/tex]

Therefore, the correct option is A.

CAN SOMEONE PLEASE HELP ME

Answers

Answer:

60 degrees

Step-by-step explanation:

This is an equilateral triangle. Each angle has the same measure. There are three angles. So: 180 ÷ 3 = 60.

Answer:

60

Step-by-step explanation:

The figure shown is a triangle

To be more specific an equilateral triangle.

We know that this is an equilateral triangle because all of the side lengths are congruent ( indicated by the little mark on each side ) and if each side length is congruent then each angle is congruent.

Because the sum of the angles in a triangle adds up to equal 180 we can simply find the measure of each angle by dividing 180 by 3

180/3=60

so every angle = 60 degrees

Therefore your answer is 60

HELP ALMOST CLASS TIME

Answers

Answer:

B

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Can someone help?????

Answers

Answer:

i can Lol if you will help me after i help you

Step-by-step explanation:

put -6.5 in between -6 and -7. put -8.5 between -8 and -9. -6.5 is > than -8.5. hope this helped and i hope im right.

What is the median of 5, 9, 5, 6, 3, 2,

Answers

arrange the numbers from least to greatest
2,3,5,5,6,9
the median is 5

Q1.) A carton contains 25 cards numbered 1 to 25. Alecia picks a card randomly. What is the probability that Alecia will pick an odd number?

Answers

Answer:

52%

Step-by-step explanation:

Since there are 25 numbers in 1-25, you need to divide 100/25 which is 4.

There are 13 odd numbers in 1-25 so you need to multiply 13x4.

13x4=52

There is a 52% chance she will pick an odd number.

What is the slope of line b?

2

Answers

The answer is letter C. (1/2)

Answer:

C. [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Hope this helps!

Brett has 100 feet of fence with which to make a rectangular cage for his dog. The area of the cage in square feet is given by the polynomial where w is the width of the cage in feet. What is the area of the cage if the width is 8 feet?

Answers

Answer:

Area of rectangle cage = 336 feet²

Step-by-step explanation:

Given:

Wire required for fencing = 100 feet

Width of rectangular cage = 8 feet

Find:

Area of rectangle cage

Computation:

Wire required for fencing = perimeter of cage

Perimeter of rectangular cage = 100 feet

2[l + b] = 100 feet

l + 8 = 50 feet

Length of rectangular cage = 42 feet

Area of rectangle cage = Length x Width

Area of rectangle cage = 42 x 8

Area of rectangle cage = 336 feet²

NO LINKS PLEASE! 3-6

Answers

Answer:

3. 52(1).93 + (7).1

4. (0).31 + (5)

5. (8).01 + 2(3).8

6. (3) + (9).62

Answer this question to get marked Brainliest and get 100 pts

Answers

Answer:

d

Step-by-step explanation:

Answer:

[tex]122+154i[/tex], D

Step-by-step explanation:

[tex]\mathrm{Apply\:complex\:arithmetic\:rule}:\quad \left(a+bi\right)\left(c+di\right)=\left(ac-bd\right)+\left(ad+bc\right)i[/tex]

[tex]a=14,\:b=-2,\:c=7,\:d=12[/tex]

[tex]=\left(14\cdot \:7-\left(-2\right)\cdot \:12\right)+\left(14\cdot \:12+\left(-2\right)\cdot \:7\right)i[/tex]

[tex]=122+154i[/tex]

FREE PTS! What is something that annoys you? (pet peeves)​

Answers

Answer:

people not rinsing out they dirty dishes

Step-by-step explanation:

Answer:

When people like pick me girls are like, oh my gosh im so ugly I wish I was pretty. To get everyone's validiation or to be cute its annoying.

Anyways have a great day :)

PLEASE HELP FAST


Part A: Find the value of c that will result in a perfect square trinomial.
x2 + 18x + c = 25 + c


Answers

15+e+(18x2) then subtract the answer with 24

Please help .......... ASAP !

Answers

Answer:

i think it is (d) - 24.1

Step-by-step explanation:

have a nice day

brainliest please?

The scale of map is 1cm : 70km. What is the actual distance between towns that are 5cm apart on the map

Answers

Answer: 350km

Step-by-step explanation:

Since we are informed that the scale of map is 1cm : 70km. Therefore, the actual distance between towns that are 5cm apart on the map will be:

= 5 × 70km

= 350km

Therefore, the answer is 350km

The table shows the bowling scores for Bill and Tonya in a given game set.
Who is a better bowler based on the median scores, and why?
Pls no links

Answers

Welp I’d like to see you and 23 for to the next

Charlotte is running at a rate of 9 kilometers per hour. What is her rate in meters per second?

Answers

Answer:

9000

Step-by-step explanation:

1km=1000m

9×1000=9000

An object is launched directly upward at 64 feet per second from a platform 80 feet high. Write the function for the height of this object at any given time (t seconds).

Answers

Answer: 144 feet

Step-by-step explanation:

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