Solve the following simultaneous equations by drawing graphs,
(a) x +y=7 and y=x-3
b) x + y = 8 and x=y

Answers

Answer 1

Answer:

a) x = 5 and y = 2

b) x = 4 and y = 4

Step-by-step explanation:

Here, we want to solve the simultaneous equations by graphing

We shall be using an external graphing tool for this

The point at which the lines intersect represent the solution to the equation

please check attachment for the plots

For the first equation, we have the solution as;

x = 5 and y = 2

For the second, we have;

x = 4 and y = 4

Solve The Following Simultaneous Equations By Drawing Graphs,(a) X +y=7 And Y=x-3b) X + Y = 8 And X=y
Solve The Following Simultaneous Equations By Drawing Graphs,(a) X +y=7 And Y=x-3b) X + Y = 8 And X=y

Related Questions

HELPPP PLEASE will mark as brainlist

Answers

Answer:

D.  16

Plzzzzz give me Brainliest!!!!!  

Nitric acid is in liquid form if its temperature is between -44°F and 181°F.
At what temperatures will nitric acid be in liquid form?
Choose ALL the correct answers.
-178°F
0°F
192°F
145°F
-41°F
36°F

Answers

option 2, 4, 5, and 6

Answer: 144,36,0,-41

hope this helps :}

Concrete is made by mixing screenings cement and sand in the ratio 3:1:15. How much sand would be needed to make 125 tons of concrete?

Answers

Answer:

=    98.7 tons

Step-by-step explanation:

ratio =   3:1:15

amount of sand needed =    (15/19)*125      /  3 + 1 +15  =19

Mr. And Mrs. Donahue want to buy a home valued at $365,000. If they have 21.5% of this amount saved for a down payment, how much will their home loan be? a. $78,475 b. $286,525 c. $341,275 d. $357,153

Answers

Answer: b. $286,525

Step-by-step explanation:

The amount the have saved for a down payment is:

= 365,000 * 21.5%

= $‭78,475‬

They will have to get the rest by loan which is:

= 365,000 - ‭78,475‬

= $286,525

Answer:

b

Step-by-step explanation:

Need help with Geometry proof--thank u

Answers

Step-by-step explanation:

QR is parallel to TU | Given

S is the midpoint of QT | Given

QS = ST | Definition of midpoint

<QSR = <TSU | definition of vertical angles

<QRS = <STU | Definition of Alternate Interior Angles

QSR = TSU | ASA

Pretty sure that's right :D

Also, wherever it says "=", I mean congruency symbol

PLZZ HURRY The students at Southern Junior High School are divided into four homerooms. Benjamin just moved into the school district and will be randomly assigned to one homeroom.

Which methods can be used to simulate this situation? Select three options..
Flip a coin 4 times, once for each homeroom, with heads up representing being assigned to the homeroom represented by that flip.
Draw a marble from a bag containing 5 white marbles, 5 black marbles, 5 red marbles, and 5 green marbles, with each color representing a different homeroom.
Use a random number generator with 1, 2, and 12 representing the first homeroom, 7, 9, and 10 representing the second homeroom, 3, 8, and 11 representing the third homeroom, and 4, 5, and 6 representing the fourth homeroom.
Roll a number cube with 1 representing the first homeroom, 2 representing the second homeroom, 3 representing the third homeroom, and any other outcome representing the fourth homeroom.
Spin a spinner with 8 congruent sections with 2 sections assigned to each homeroom.

Answers

Answer:

BCE

Step-by-step explanation:

Answer: (B, C, E)

Step-by-step explanation:

B) Draw a marble from a bag containing 5 white marbles, 5 black marbles, 5 red marbles, and 5 green marbles, with each color representing a different homeroom.

C) Use a random number generator with 1, 2, and 12 representing the first homeroom, 7, 9, and 10 representing the second homeroom, 3, 8, and 11 representing the third homeroom, and 4, 5, and 6 representing the fourth homeroom.

E) Spin a spinner with 8 congruent sections with 2 sections assigned to each homeroom.

Please Help
0 is the reference angle. Label the hypotenuse, opposite leg, and adjacent leg

Answers

With respect to where theta.

CW is hypotenuse
WO is opposite leg
CO is adjacent leg

Find the missing angles .

Answers

Answer:

f=60 , c=30

Step-by-step explanation:

there are 2f and 2c in the graph and f=2c

So

f+f+c+c=180

2c+2c+c+c=180

6c=180

c=180/6

c=30

f=2c

f=2×30

f=60

find (f-g)(x) when f(x)=3x+2 g(x)=2x^2-4 h(x)=x^2-x+7

Answers

(f + g)(x) = f (x) + g(x)

= [3x + 2] + [4 – 5x]

= 3x + 2 + 4 – 5x

= 3x – 5x + 2 + 4

= –2x + 6

Which expression is equivalent to
(32)?
081
0-12
0 0
1
81
12

Answers

Answer:

c

Step-by-step explanation:

1/81

(1/9)^2

Thanks me later ☺️

expand the expression ​-2.5(-3 + 4n + 8)

Answers

Answer:

2.5+7.5+-10n+-20

Step-by-step explanation:

Multiply everything on the inside by the number on the outside and put it together with addition signs.

-2.5(-3+4n+8)

-2.5*-3=7.5

-2.5(7.5+4n+8)

-2.5*4= -10

-2.5(7.5+-10n+8)

-2.5*8=-20

-2.5+7.5+-10n+-20

Answer: 7.5 + 200n

Step-by-step explanation:

(-2.5 • -3) + (-2.5 • 4n) + (-2.5 • 8)

7.5 + -10n + -20

7.5 + 200n

A cone has a diameter of 4 inches and a height of 7 inches. Find the volume of the cone in terms of π and
using 3.14 for π.

Answers

Answer:

205.25072

Step-by-step explanation:

use the cone calculator

What’s 5x + 5 factored?

Answers

Answer:

5(x+1)

Step-by-step explanation:

So factor is to make it simplified like x(y+c) {I made up random variable for an example but almost all factored problems look like this}

So first find the Greatest Common Factor or GCF for short

The GCF between 5x and 5 is 5

So you divide the whole thing by 5

5x+5/5

you’d get x+1

Now for the 5 just put it around X+1 but with parenthesis

5(x+1)

Hi I need help asap

I don’t understand it can u help me for a and b

Answers

Answer:

Hey If you get the answer can you help me bro

Step-by-step explanation:

I am not understanding that either

QUICKK
Solve systems by substitution Find the solution
SHOW ALL WORK

X = 5
-4x + y = -10

( , )

Answers

This is the answer (5,10)

Mrs. Maytag is purchasing a dryer that sells for $640. She has a coupon for a 15% discount. The sales tax in her area is 72%
What will be the final cost of the dryer?

Answers

Answer

Help me too

Step-by-step explanation:

A farmer is building a new silo. The circular silo is 27 meters tall and has a radius of 14 meters. What is the area of the base of the silo? Round your answer to the nearest tenth. Use 3.14 for pi

Answers

Answer:

615.44m²

Step-by-step explanation:

The base of the silo is a circle

Rea of the base of the silo = πr²

r is the radius of the silo

Given

radius r = 14m

Area of the base of the silo = π(14)²

Area of the base of the silo = 3.14(196)

Area of the base of the silo = 615.44

Hence the area of the base of the silo is 615.44m²

I need help with this problemmm, someone help mee!!.

Answers

Answer:

∠A=30°

Step-by-step explanation:

let's call the angle at the bottom B and the one next to the 130 C

∠A=3x-6

∠C=180-130= 50°

vertical angles are equal∠B =8x+4

∠A+∠C+∠B=180°

find x:

3x-6+50+8x+4= 180°

11x+48=180°

11x= 132

x=12

find ∠A

∠A=3x-6= 3(12)-6 =30°

how do i do these 2 problems please help

Answers

To plot points, you need to first look at the two axis ( The two lines with arrow heads). After looking you can see that there are numbers on each axis. To actually plot points, you will need to place them in this order (X,Y) these are called coordinates. What you need to do now, is simple. You just need to count! The boxes on the grid help with that. Place your finger right where the x and y axis meet. That point is 0. Trace your finger on the paper and move over the x line. When you see the point you need to figure out, stop when your finger is on the same grid line (your finger is on the lines making boxes vertically), be sure to keep in mind that the point does not have to be directly on the axis line, just make sure it’s on the same line going up. From that point, what you need to do is count backwards to that 0 point mentioned earlier. The number that you get is your first number, the y coordinate is the second point you need. To find that you apply the same formula, just going upwards instead of across. Stop moving your finger when you see a point on the same line. When you see it, count backwards again, and the number you get should be the y coordinate. If you still need additional help I have added a picture below which is close to your example. I hope this helps!

2 + |x-4| = 5
Please help

Answers

Answer:

X=7

Step-by-step explanation:

2 + |x-4| = 5

2 + x -4 = 5

2 + x = 5 + 4

2 + x = 9

x = 9 - 2

x=7

Answer:

x=7

Step-by-step explanation:

2+ x - 4= 5| -2

x-4 =3 | +4

x=7

Hello! I need some help. Have a blessed day!

Answers

Answer:

false is the correct answer of it if the answer going wrong sorry

false ! have a blessed day as well.

can someone help me by looking at the picture above??

1. find the mean amount
charged = $ ?

Answers

Answer:  400.89

=======================================================

Work Shown:

To find the average price, we will add up the 9 values in column 2 to get

120+272+358+328+406+392+530+592+610 = 3,608

Then divide that total by 9 since there are 9 values we added up

We get the average to be (3,608)/9 = 400.888 which is approximate. This rounds to 400.89

Side note: It's a bit strange how your teacher mentions "charge in pounds" but then uses a dollar sign.

Step-by-step explanation:

To find the mean, you add all the numbers together then divide by the number of numbers.

Charge : 120+272+358+328+406+392+530+592+610=3608/9=400.888888 =400.89 dollars

For these questions, give your answers to 1 decimal place.
a) Change 21 out of 71 to a percentage
b) Change 46 out of 154 to a percentage​

Answers

Answer:

a) 29.6%

b)29.9%

Step-by-step explanation:

Here, we want to change the values to percentage form

a) we have this as;

21/71 * 100% = 29.6%

b) we have thus as;

46/154 * 100% = 29.9%

What is the inverse of y=x+5/3

Answers

Answer:

x= -5/3

Step-by-step explanation:

On Gabriela's first birthday, he parents gave her a $50 savings account. On every birthday after that
her parents added to the account, increasing the amount they deposited by $25 each year. What is the
total amount Gabriela's parents will have deposited into the account by her 18th birthday?

Answers

Answer:

The answer I got was $500

Answer:

$475

Step-by-step explanation:

$25 times 17 years = $425

$50 on 1st year plus the $425 over 17 years

$475

PLZZZ HELP IF YOU ANSWER THIS JUST TO GET POINTS I WILL REPORT YOU PLZZZ I NEED HELP

Answers

Answer:

1372 inches

Step-by-step explanation:

980/5=196

196*7=1372

The answer is 196 inches. Therefore the ant can travel 196 inches per minute.

An ant can travel at a constant speed of 980 inches every 5 minutes.

What you should do is find the distance traveled from this ant by in one minute so that we can get the accuracy from just dividing the total distance that was from this place to place distance.

Traveled distance from an ant in 1 min=980/5

Distance that was traveled by an ant is in 1 minute so 196.


Please give brainiest

The measure of an angle is 8 degrees less than three times the measure of another angle. If the two angles are supplementary (two angles whose sum is 180) what is the measure of the larger angle?

Answers

Answer:

The measure of the larger is [tex]133^{\circ}[/tex].

Step-by-step explanation:

Given:

The measure of an angle is [tex]8[/tex] degrees less than three times the measure of another angle.

The two angles are supplementary.

To find: The measure of the larger angle.

Solution:

Let the measure of the smaller angle be [tex]x^{\circ}[/tex].

Then the measure of the larger angle be [tex]3x^{\circ}-8^{\circ}[/tex].

The two angles are supplementary, so their sum is [tex]180^{\circ}[/tex].

So, [tex]x^{\circ}+3x^{\circ}-8^{\circ}=180^{\circ}[/tex]

[tex]\Rightarrow 4x^{\circ}-8^{\circ}=180^{\circ}[/tex]

[tex]\Rightarrow 4x^{\circ}=180^{\circ}+8^{\circ}[/tex]

[tex]\Rightarrow 4x^{\circ}=188^{\circ}[/tex]

[tex]\Rightarrow x^{\circ}=\frac{188^{\circ}}{4}[/tex]

[tex]\Rightarrow x^{\circ}=47^{\circ}[/tex]

So, the measure of the smaller angle is [tex]47^{\circ}[/tex].

And, the measure of the larger angle is [tex]3\times47^{\circ}-8^{\circ}=133^{\circ}[/tex].

Hence, the measure of the larger is [tex]133^{\circ}[/tex].

Express 700 as a product of its prime factors in index form.
Write the prime factors in ascending order.

Answers

Answer:

700 = 2² × 5² × 7

Step-by-step explanation:

We need to find 700 as a product of its prime factors in index form.

Prime factors of 700 =2 x 2 x 5 x 5 x 7

= 2² × 5² × 7

So, 700 is equal to 2² × 5² × 7.

Hence, 700 is expressed as a product of its prime factors in index form.

A chef uses 2/3 cup of flour for every 1/8 cup of water in a dough recipe. If the chef follows the recipe proportions which statement is true PLEASE SOMEONE HELP ME OUT

Answers

Answer:

What statements =?

Step-by-step explanation:

Help please this is my grade we are looking at!

Answers

Answer:

D

Step-by-step explanation:

D is the only correct choice

Answer:

D

Step-by-step explanation:

Other Questions
For all seawater problems, assume the salinity is 3.5%If you have a 2000 gram sample of seawater, how many grams of pure water are there?0.035 x 2000) = x, 2000 - x = pure waterAnswer to the nearest WHOLE number. Tonic bonding is the result of electron transfer.Lose electrons and become positive ions. While,Gain electrons and become negative ions.gainWrite your two answers with a comma between them like: dogs, cats. What is the doppler effect in astronomy used for? Which filter gives a squeezed effect to an image? what best describes the authors message in this passage reasons why the European Nation came to North America a sphere has a volume of 4500 cubic inches. What is the radius off the shpere do we live in a simulation? What is the slope of the line shown below? Compression, shear, and tension are three types of stress that act on layers of rock. Explain the results that each type of stress can have on layers of rock. Include a discussion of whether each result happens slowly or quickly. Can someone please help me on how to summarize the 19th Amendment and also you would have to give a significance to prove it. Please I need help! Answer as soon as possible Some people do not refer to what happened in Tulsa as a race riot but rather as an act of terrorism against African Americans.Do you agree with this? Why or why not? Read these lines from "Harlem [2]." Does it dry up like a raisin in the sun?What does the phrase "dry up like a raisin in the sun" mean?to shrivel and hardento get plump and juicyto disappearto expandPLZ!!!! HELPPP!!!!!80 POINTS!!!!!!!!!!! Please I really need helpWhich of the following answer choices best describes situational irony?Question 2 options:A reader expects something to happen, but instead the situation delivers the opposite.A reader expects something to happen, and when it does, it adds humor.The narrator offers a biased perspective of events.Readers in a story know more about the events than characters do. What should I get from Taco Bell? I want a big meal! At least 3 things! Click to read "Forgetfulness" by Billy Collins. Then answer the question.What is one possible theme of the poem?A. The experience of losing memories can be frightening, but it canalso be beautiful.B. Retiring, packing a bag, and floating down a river are similar tolosing one's memory.C. It's important to keep your brain sharp and active so you won't loseyour memory.D. Lost memories will always return to your subconscious asdreams. Which right is left out of the Bill of Rights? Which came first in the development of states?1 city-states2 empires3 dependencies4 nation-statesi thn its 1 but im not sure. Solve the system of equations - 2x + 2y = 28 and - 2x - 3y = - 17by combining the equations .