Solve the following system of equations by using
substitution
y = -x + 4
2x + 3y = 8

Answers

Answer 1

Answer: x  =  4  ,  y = 0

Step-by-step explanation:


Related Questions

1.
Write down the equation of a line which has a slope of 5 and crosses the y-axis at 8.
Give your answer in slope-intercept form.

Answers

y = mx + c so
y = 5x + 8

ik this isnt mathematics but heres my question.

6. A girl is riding her skateboard down a hill. She speeds up as she goes down the hill, and the wheels get a little warmer. Saved to this PC What energy transformations happen while she is going down the hill?
A. Motion energy (kinetic energy) is transformed into gravitational potential energy an thermal energy
B. Gravitational potential energy is transformed into motion energy (kinetic energy) and thermal energy. C. Gravitational potential energy is transformed only into motion energy (klnetic energy).
D. No energy transformations are involved while she is going down the hi D​

Answers

Answer:

B

Explanation:

the wheels are getting warmer so it would have to be thermal energy, hope this helps :)

Gravitational potential energy is transformed into motion energy ,kinetic energy and thermal energy.

We know that Gravitational potential energy is the potential energy with respect to the gravitational force. To possess gravitational potential energy, the object to be placed in a position in the gravitational field.

What is potential energy?

Potential energy of body is the energy generated by virtue of the position of the body. Whereas kinetic energy is generated by virtue of its movement.

Potential energy and kinetic energy together called as mechanical energy. The potential energy is mathematically expressed as;

p = mgh.

Here, g s gravity, h is height and m is the mass.

The gravitational potential energy can be arised in an object due the position in gravitational field. That changes with the change in position and change in height from the ground.

Hence Gravitational potential energy is transformed into motion energy (kinetic energy) and thermal energy.

To find more on potential energy, refer here:

brainly.com/question/24284560

#SPJ2

The ratio of men to women working for a company is 5 to 4. If there are 261 employees total, how many men work for the company?

Answers

Answer:

There would be 145 men employees.

Step-by-step explanation:

5/9=x/261

9x=1305

x=145

If y = - 3x + 5, what is y when
X=2/3?
Select one:
7
-1
3
11

Answers

Answer:

y = 3 may I please get brainliest?

Step-by-step explanation:

y= -3x+5

y= -3(2/3)+5

-3(2/3) = -2

y= -2+5

-2+5 = 3

y=3

If an airplane boards 16 people every 3 minutes how long would it take to board all 150 passengers

Answers

Answer:

28 or 29 minutes

Step-by-step explanation:

multiply 150 and 3 then divide by 16 which gives you 28.12 but I guess you can round it to 28 or 29

Answer:

28 or 29 minutes u choose

Step-by-step explanation:

16 x 9 = 144 for 27 minutes

16 x 10= 160 for 30 minutes

I'd go with 28

NEED HELP NOW PLEASE

Answers

Answer:

C: Termal energy is added

Step-by-step explanation:

thermal energy is what makes ice turn into water and water turn into gas

765 divided by 11 is???

Answers

Answer:

                             

mixed number 69/6/11

decimal form:69.54

exact form 765/11

research:69.5454545455

Step-by-step explanation:

Hope this helped!

Answer:

the answer is 69.5454545455

Step-by-step explanation:

Four cans of beans cost $2.84.
Which process can be used to
determine the cost of 10 cans of
beans?

Answers

Answer:

Step-by-step explanation:

First box

Answer:

it's the first answer choice

Step-by-step explanation:

similar polygons are ________________ the same shape


always
sometimes
never

Answers

Answer:

Always

Step-by-step explanation:

Similar figures are always the same shape, but not always the same size. If they have they same size, then they are also congruent.

Trevon and Riggs are brothers.
Trevon is 7 years older than Riggs.
Their combined age is 49.
How old is Trevon

Answers

Answer:

Trevon is 28 years old

Step-by-step explanation:

Riggs =x

Trevon =7+x

7+x+x=49

7+2x=49

2x=49-7

2x=42

x=21

Trevon is 21+7= 28 years old

Let’s take T for Trevon and R for Riggs.

T = 7 years older than R which can be written as T = R + 7

Their combined age is 49.

Therefore, T + R = 49

We need to find Trevon’s age (T.)

We can substitute R + 7 for T in the equation

T + R = 49.

We have:

R + 7 + R = 49
Now solve.

2R + 7 = 49

2R = 42

R = 21

We have found Riggs’ age which is 21.

Add 7.

Trevon’s age is 28.

PLEASE HELP
A jar contains only​ pennies, nickels,​ dimes, and quarters. There are 16 pennies, 29 dimes, and 24 quarters. The rest of the coins are nickels. There are 96 coins in all. How many of the coins are not​ nickels? If n represents the number of nickels in the​ jar, what equation could you use to find​ n?

Answers

Answer:

the answer is 67 coins are not Nickels

Step-by-step explanation:

29+24+16=67 so there is 27 Nickels in the jar

y=x²+2x–5
vertex form

Answers

Answer:

y=(x+1)^2-6

Step-by-step explanation:

Y=x+1 for this answer

Divide. -24 divided by 7 Enter your question as a mixed number, in simplified form, in the box. Please hurry! Thank you :D

Answers

Answer:

-3 1/7

Step-by-step explanation:

The required simplified mixed number of -24 divided by 7 is -3 3/7.

To divide -24 by 7, the result is a mixed number in simplified form.

Divide -24 by 7:

-24 ÷ 7 = -3.428571...

Simplify the result as a mixed number:

To write the mixed number, we take the whole number part, which is -3, and the fractional part, which is the remainder after dividing.

The remainder is approximately 0.428571... (it goes on infinitely), but we'll round it to the nearest fraction for simplicity.

Approximately, 0.428571... is closest to 3/7.

So, the simplified mixed number is -3 3/7.

Learn more about mixed numbers here:

https://brainly.com/question/24137171

#SPJ6

Identify the base and exponent of b3

Answers

Answer:

The base is b3 I am pretty sure and the exponent is 1. Since there is no exponent I would say 1 as my exponent please wait for more answers if needed.

What is the total surface area of the triangular prism? Select one:
O 60m²

O 30m²

O75m²

O 63m²​

Answers

30 points is the answer

Find each difference.
(-6s2 + 12s – 8) – (352 + 85 – 6) =
-952 + 45 – 14
_952 + 45 - 2
_952 + 20s – 14
O_952 + 20s - 2
DONE

Answers

The guy below is right

Joshua has a 32 ounce flavored water. He drinks 30 ounces. Enter the percentage of ounces Joshua has left of his flavored water. Round here answer to the nearest hundredth.

Answers

Answer: 6.25%

Step-by-step explanation:

From the question, we are informed that Joshua has a 32 ounce flavored water and that he drinks 30 ounces.

The amount of water he has left will be:

= 32 - 30

= 2 ounces

The percentage of ounces Joshua has left of his flavored water will then be:

= 2/32 × 100

= 1/16 × 100

= 6.25%

For which equation is x = 1 a solution?
A 4 - x = 1
B 4x = 1
C X divided by 3 = 4
D X/4 = 1

Answers

I believe it’s B but I don’t know

True or False
4x + 2y - x = 3x + 2y

Answers

Answer:

False

Step-by-step explanation:

4E. There is an ample supply of identical blocks (as shown). Each block is constructed from four 1 × 1 × 1 unit-cubes glued whole-face to whole-face. What is the greatest number of such blocks that can be packed into a box that is 6 units tall, 7 units wide, and 8 units deep without exceeding the height of the box?

Answers

Answer:

72

Step-by-step explanation:

sdsa

Answer:

72

Step-by-step explanation:

The answer can also be 80 and 84.

Which statement is true about the regular octagon?
O A is the point of symmetry.
| 0 The regular octagon does not have Aoint symmetry.
The regular octagon will map point A onto point E
when rotated about point P 180°
O The regular octagon will map point C onto point E
when rotated about point P 180°.

Answers

Answer:

The answer is C

Also add me on snap     Bubbafrederick

Step-by-step explanation:

A coin contains 9 99 grams of nickel and 16 1616 grams of copper, for a total weight of 25 2525 grams

Answers

Answer:

64%

Step-by-step explanation:

A coin contains 9 grams of nickel and 16 grams of copper for a total weight of 25 grams.

What percentage of the metal in the coin is copper

Solution:

The total weight of the coin = weight of copper in coin + weight of nickel in coin

The total weight of the coin = 9 g + 16 g = 25 g

The percentage of copper in the coin is the ratio of the weight of copper in the coin to the total weight of the coin expressed in percentage. It is given by the formula:

The percentage of copper in the coin = (weight of copper in the coin / total weight of the coin) * 100%

The percentage of copper in the coin = (16 g / 25 g) * 100% = 64%

Negative angles are measured in which direction from standard position?

Answers

The negative angles are measured in a clockwise direction.

What are angles?

When two straight lines or rays intersect at a single endpoint, an angle is created. The vertex of an angle is the point at which two points come into contact.

An angle can be measured in either direction clockwise or anticlockwise.

The angle measured in the anticlockwise direction is considered a positive angle while the angles measured in the clockwise direction are considered to be negative angles.

Hence, the negative angles are measured in the clockwise direction.

Learn more about angles:

https://brainly.com/question/28451077

#SPJ6

Two garden hoses are filling a kiddie pool together. Together they can fill the pool in 12 minutes. If used separately, one hose can fill the pool 10 minutes faster (not 10 times) than the other. How long does each hose take by itself to fill the pool?
Hint: 10 minutes more is x+10.


PLEASE ANSWER NEED URGENT

Answers

Answer:

Step-by-step explanation:

if the faster hose is ten minutes faster and both together only takes 12 minutes then the secound one by it self should take 22 mins. i think im not sure tho

will give brainly if correct (hs gemotry)

Scarlett has a 12 foot ladder that she is using so she can clean the gutters on her house. If she leans it against the house, making an 80 degree angle with the ground, how high up the house does it reach?

Answers

Scarlet is leaning a 12 foot ladder. When you lean a 12 foot ladder, it is s slanted so we will make 12 our slanted side or hypotenuse. It makes a 80 degree angle after contact with the ground so it will be on the lowest angle on the right. We are asked to find the vertical side or how high up the ground is. We are asked to a angle that is opposite of the given angle which is x .. And we are also given the hypotenuse. We are going to use sin using our SOHCAHTOA

[tex] \sin(theta) = \frac{opposite}{hypotunese} [/tex]

Where there is our given angle.

Let plug it in

[tex] \sin(80) = \frac{x}{12} [/tex]

Multiply 12 by both sides and we get

[tex] \sin(80) \times 12 = x[/tex]

Which about 11.8 if rounded to nearest tenth or 11.82 if rounded to nearest hundredth.

IF ROUNDED TO NEAREST TENTH, 11.8

IF ROUNDED TO NEAREST HUNDRETH, 11.82

can somone help me pls? i am really bad at this. number 12 :)​

Answers

whats the question

ill edit the answer in you put the question

Answer:

m∠3 = 78

Step-by-step explanation:

Okay, since a triangle has 3 sides, we only need to find the measure of m∠3.

A triangle is made up of 180 degrees, so we can make an equation with 180 as what the equation is equal to.

Since m∠1 = 70, and m∠2 = 32, we will add those together with a variable x,

70+32+x=180

70 plus 32 is 102.

102+x=180

To get 102 to the other side we need to do the opposite of addition, which is subtraction.

180-102=78

So the answer is 78.

The length of the tunnel is 460 miles. If 1 inch represents 60 miles, what is the length of the scale drawing of the tunnel? Round to the nearest hundredths. Be sure to include units.

Answers

Answer:

7.66 inches

Step-by-step explanation:

In order to find the answer, you need to first find the ratio of miles to inches. You would do this by doing 460/60. In result you would have 7.66.

Write the recursive formula for the arithmetic sequence below.
5, 3, 1, −1, …

Answers

f(x)= x -2 i think that should be it

Fracesca is growing 1/2 inch each year. How many years will it take her to grow 6 inches?

Answers

12
1/2 * x =6
6/ (1/2) = x
X=12

Write an equation of the perpendicular bisector of the segment with endpoints M(1,5) and N(7,−1).

Answers

Answer:

Step-by-step explanation:

find the perpendicular bisector of a line segment with endpoints  

(ii) Find a point on the perpendicular bisector (the midpoint of the given line segment) using the midpoint formula:

( x 3 , y 3 ) = ( x 1 + x 2 2 , y 1 + y 2 2 )

Other Questions
How can a compound not conduct electricity as solid but do so when liquid?HELP what is the surface area of a cube with the dimensions of 3in by 3in by 3in? what is 35 degrees in one second Very Easy will give brainlist Find The Length put image below Question 5 of 5What is one reason the Second, Third, and Fourth crusades resulted infailure?A. The Byzantine Empire turned on the crusaders and allied withMuslim forcesB. Leaders of the Crusader States converted to Islam and lost thesupport of the pope.C. European kings like Richard the Lionheart were not able to leadarmies into the Holy Land,D. Muslim forces were more organized and united behind leaders liloSalah ad-Din. t x 3/4 for t =8/9 i don't know it The theme of Murder on the Orient Express is "An individual's social class determines his or her personal value."falsetrue What year was the modern baseball error when no blacks were allowed to play? can someone help me with this please There are 40 working hours in a week and 52 weeks a year. How much does Nate need to make an hour to stay out of debt if it costs him $900 to live each month? 3. How many layers does our skin have? *357 You and your friends hike a total of 8 miles to the nearest campsite (Activity A). Upon arriving you break off into teams. One team will set up tents and hammocks for everyone to sleep in (Activity B). At the same time, another team will get wood for a fire (Activity C). Once they have the wood, that same team then proceeds to start the fire (Activity D). The third team will walk to find water (Activity E) and once they find it they will to collect water and bring it back to camp (Activity F). Once the fire is ready and the water is brought back to camp the two groups- the one collecting firewood and the one collecting water- will then purify the water (Activity G). Once the camp is set up and the water is purified everyone will come together and cook dinner around the campfire (Activity H). Once dinner is prepared and eaten half of the group stays behind to put out the fire (Activity I) and half of the group walks away from the campsite to dispose of the food waste (Activity J). After disposing of the food waste the second half of the group returns to the camp (Activity K). Once everyone is at the campsite the day of camping ends Activity Optimistic time Most Likely Time Pessimistic Time to complete to Complete to CompleteA Hike to the campsite 3 5 8B Set up campsite 2 4 5 C Collect wood for fire 1 3 5D Start a fire 1 2 3E Find water 0.5 1 3 F Collect water and bring it 1 2 4back to canm G Purify the water 1 2 4H Cook and eat dinner 1 3 4I Put out fire 1 2 4 J Dispose of food waste 0.5 2 3K Return from food waste disposal 0.25 1 2a. Determine the critical path of the PERT chart in a.b. Assuming a deterministic system how long will it take to complete the entire process. $75 is divided into 5 piles how much in each pile Scientists have disocovered a new virus that is very different from any known viruses. What type of matter is the virus most likely made of What is the mass of an object if its potential energy is 800 J and it is 2.0 m above the ground? Gulags in the Soviet Union were very much like other labor camps in history. Describe what life was like for those sent to the Gulags and how they compared to other labor camps in history. Ekaterina wants to buy an awesome pair of boots that normally sells for $75. The boots are on sale at a 32% discount. She has $50 in her pocket. Does she have enough to buy the boots? * Andre is making paper cranes to decorate for a party. He plans to make one large paper crane for a centerpiece and several smaller paper cranes to put around the table. It takes Andre 10 minutes to make the centerpiece and 3 minutes to make each small crane. He will only have 30 minutes to make the paper cranes once he gets home.Andre wrote the inequality 3x+1030 to plan his time. Solve Andres inequality.What is X? Which was an effect of the many military bases created in Louisiana for World War II? The economy struggled postwar, as the bases went unused. (A)Businesses suffered due to the focus on construction of military bases. (B)Government officials worried that too much attention was being brought to Louisiana. (C)The economy prospered due to the increased need for goods and labor. (D) Enter the form of haber that correctly completes the sentence._____ un len en el zoolgico ahora. El len est en un centro de atencin en otra ciudad porque est enfermo, as que no est ah.