Mathematics High School

Solve the system of linear equations using
substitution. Y=x-3
Y=8x-31

Answers

Answer 1

Answer:

x=4 y=1 or (4,1)

Step-by-step explanation:

Related Questions

Find the mean of the data in the pictograph below.

Answers

The answer is 12. Ann's

Answer:

3 i think..

Step-by-step explanation:

lol  i just added and then multiplied then divided..


A full glass of water can hold a bottle.
How many glasses of water can be filled with 3 and 1/2 bottles of water?

Answers

It can fill 21 glasses of water
Explanation: 1 glass holds 1/6 of a bottle then 6 glasses hold 1 glass bottle water. then 3(12)or72 bottle can give 6⋅72 glasses of water , that is 21 glasses.


Similar
Not Similar


Please help please

Answers

Answer:

I dont think thats similar

Step-by-step explanation:

Part ?? of i need these

Answers

the answer is
R = 74
Q = 32
:)

Answer:

You already have the answer so ima just get the points

Have a good night

You can walk 3/4 of a mile in 1/6 of an hour (10 minutes). How far can you walk in an hour?

Answers

Answer:

4 and 1/2 miles (or 9/2 miles)

Step-by-step explanation:

I would set this up as a proportion

3/4          x

10          60

Cross multiply

60 x 3/4 = 45

Divide

45/10 = 4.5

4.5 = 4 and 1/2 miles

PLEASE HELP! Brainliest will be given to the right answer

Answers

The answer should be A
dilation by a scale factor of 0.5 from the origin and translation 2 units to the right

For the model to scale, the ratio of the height to the side length should be the same for both the actual pyramid and the model. Is the model of Khufu's pyramid to scale? If not, is it close?

PLEASE HELP. I WILL MARK YOU BRANLIEST​

Answers

Answer:

Scale Model of the Great Pyramid

You can build a model of the Great Pyramid, but first you need to scale it down. To do this, you will need to

make the pyramid 3,000 times smaller than it really is! To achieve that, every 30 meters of the pyramid is

represented as 1 centimeter.

Step-by-step explanation:

50 points and will mark brainlist


READ ABOVE

true

or


False

or


Not enough information

Answers

Answer:

that is true

Step-by-step explanation:

i think it's help

Step-by-step explanation:

The advertising are telling the truth value of this questions

A king owned land outside of his castle he has partitioned the land to give as gifts to his 5 sons what fraction of land did the king give to each of his sons here is zeke solution andy got 1/2 bill got 1/5 carl got 1/5 dirk got 1/8 and evan got 1/8 identify zeke's two errors correct them and explain why your answers are correct

Answers

Picture relating to the question is attached

Answer:

Andy = 1/2

Bill = 1/8

Carl = 1/8

Evan = 1/8

Dirk = 1/8

Step-by-step explanation:

According to the picture depicting the sharing of the land :

Fraction of the total rectangular plot = 1

Andy got a portion of the whole divided into 2 = 1/2

Fraction left after Andy's portion:

1 - 1/2 = 1/2

1/2 of the fraction left was divided equally between Dirk and Evan

Hence ;

1/2 of 1/2 = 1/2 * 1/2 = 1/4

Dirk's share = 1/4 ÷ 2 = 1/4 * 1/2 = 1/8

Evan's share = 1/4 ÷ 2 = 1/4 * 1/2 = 1/8

Fraction of land left :

1 - (1/2 + 1/8 + 1/8) = 1 - 3/4 = 1/4

1/4 was divided equally into 2 for Bill and Carl:

Bill's share = 1/4 ÷ 2 = 1/4 * 1/2 = 1/8

Carl's share = 1/4 ÷ 2 = 1/4 * 1/2 = 1/8

The cornfield has 384 rows of corn. If the farmer can harvest 72 ears of corn from each row, how many ears of corn will he have? *



a.456

b.27,648

c.312

d.5 R 3

Answers

Answer: 27,648

Explanation:
384 x 72 = 27,648

Answer:

b. 27,648

Step-by-step explanation:

Just multiple the two numbers together

384 x 72 = 27,648

4x^2 - 12x - 3

what would the answer be if x = 7

Answers

Answer:

= 3 /2 ±  √ 3

Step-by-step explanation:

Answer : 109


Step-by-step explanation

f(x) = 5x + 6; reflection in the x-axis

Answers

Once reflected over the x-axis y=5x-6

HELP ME I FORGOT HOW TO DO THIS please explain

Answers

Answer:

Y = 40

X = 101

W = 20

Step-by-step explanation:

All of the triangles Angles should equal 180!

The left triangle has 96°,44°, and y°.


The middle triangle has 39°,x°,and y°.


The triangle on the right has 121°,39°, and w°


First you’ll solve for y° using the left triangles values which will be 40°.


Then you will solve for the x° using the middle triangles values which will be 101°


Lastly you’ll solve for the w° using the triangle on the right which will be 20°


Hope this helps! Reply if you need further help!

PLz help an show work for brainlist

Answers

Step-by-step explanation:

Its option D

As, for red $12 is charged

So 35 x $12 = 420

And white is $10

So, 20 x 10 = $200

= $420 + $200 = $620

Hope this helps

(5x - 15) - (2x + 5) = 3x - 20
(2x + 5) - (5x - 15) = - 3x + 20
The sum is ___

Answers

Step 1: Simplify both sides of the equation.

5x−15−(2x+5)=3x−20

5x−15+−1(2x+5)=3x−20(Distribute the Negative Sign)

5x+−15+−1(2x)+(−1)(5)=3x−20

5x+−15+−2x+−5=3x−20

5x+−15+−2x+−5=3x+−20

(5x+−2x)+(−15+−5)=3x−20(Combine Like Terms)

3x+−20=3x−20

3x−20=3x−20

Step 2: Subtract 3x from both sides.

3x−20−3x=3x−20−3x

−20=−20

Step 3: Add 20 to both sides.

−20+20=−20+20

0=0

Answer:

All real numbers are solutions.

2x+5−(5x−15)=−3x+20

Answer:

All real numbers are solutions.

2x+3y=3
y=8-3x

The value of y is substituted back into the first equation what is the resulting equation?
what is the value of x?
what is the value of y?

Answers

Answer:

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

x = 3

y = -1

Step-by-step explanation:

pretty sure thats right! have a great day!

Are these triangles similar?

Answers

Answer:

B. Yes, by the AA Similarity Postulate

Step-by-step explanation:

This triangles are both similar based on the AA Similarity Postulate. We know that all angles are equal because...

m∠ABE = m∠CBD = 42° (because they are veridical/opposite angels)

m∠AEB = 180° - m∠ABE - m∠EAB = 180° - 42° - 53° = 85°

Then from here we know that

m∠BDC = 180° - 85° - m∠CBD

m∠BDC = 95° - 42°

m∠BDC = 53°

From here we see that they are similar because of the AA Similarity Postulate, since

m∠ABE = m∠CBD = 42°

m∠BDC = m∠EAB = 53°

m∠AEB = m∠BCD = 85°

pakisaguatn pls help me asappppppppppp
nahihirapan po ako dito
plsssss​

Answers

Answer:

Step-by-step explanation:

conversion factors:

m:cm= 1:100

dm:km= 1,000,000:1

m:mm= 1:1000

hg:dg= 1:1000

g:cg= 1:100

kg:g=1000

so we plug in:

5m=500 cm

5246dm=0.5246km

5.246m=5246mm

3.7hg=3700dg

0.37g=37cg

370kg:370000

so the word is SPEAKUP

Scott and Cassie are selling pies for a school fundraiser. Customers can buy cherry pies
and apple pies. Scott sold 4 cherry pies and 6 apple pies for a total of $88. Cassie sold 8
cherry pies and 7 apple ples for a total of $126. What is the cost of each pie?
Cherry pies cost
and apple pies cost

Answers

Answer:

9.42857142857

Step-by-step explanation: Is a long decimal so you could just round it to 9.43

Find the slope between the ordered pairs (3,8) (-2,6)

Answers

Answer:

2/5

Step-by-step explanation:

(y2-y1)/(x2-x1)=slope

8-6=2

3+2=5

slope is 2/5

Answer: The slope of the line is 0.4

Step-by-step explanation: I wish it help.

There are 40 animals in Mang Roman's farm.The ratio of cows to carabaos to goats to horses is 4:2:3:1. How many animals of each kind are there in Mang Roman's farm.

Answers

Answer:

there are

16, 8, 12 and 4 different animals

Step-by-step explanation:

Step-by-step explanation:  

Step one:  

given data

Number of Animals = 40

The given ratio is = 4:2:3:1  

The total ratio is = 4+2+3+1= 810

Step two;

Applying the part to all method

The first animal  

4/10=x/40

cross multiply  

10x= 40*4  

divide both sides by 10

x= 160/10

x= 16

for second we have  

2/10=x/40

cross multiply  

10x= 40*2  

divide both sides by 10

x= 80/10

x= 8

for the third  we have

3/10=x/40  

cross multiply  

10x= 40*3  

divide both sides by 10

x= 120/10

x= 12

for the fourth  we have

1/10=x/40  

cross multiply  

10x= 40*1  

divide both sides by 10

x= 40/10

x= 4

Describe the transformation that occurred
h(x) = 1/5f(x)

Answers

Answer:

Step-by-step explanation: To find the transformation, compare the function to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.

Vertical compression

Mia reads her favorite book. Thr equation y=25x represents the number of pages read over the amount of days.
is it proportional and the unit rate? (hw help) ​

Answers

Answer:

yes, it is proportional because the slope is constant, and it is a linear equation

the unit rate is 25 x's per y

Step-by-step explanation:

can you guys please help i would appreciate it , 15 points ! please, i’ll mark you brainliest!

answer the 2 questions

Answers

the first one is 12% and the second one is 32.30

sorry that's all I know

But I think is 12%

that is my answer#carry on learning

Question 4 (2 points)
Which equation represents a line parallel to the line whose equation is 2y - 5x = 10?
оа
2y + 10x = 8
Ob
4y - 10x = 12
OC
5y + 2x = 10
Od
5y-2x = 25
Question 5 (2 points)
What is the slope of the line perpendicular to the line represented by the equation 2x + 4y = 12?

Answers

Answer:

12

Step-by-step explanation:

The required equation of the line that is parallel to the given line is 4y - 10x = 12. Option B is correct.

Given that,
Which equation represents a line parallel to the line whose equation is 2y - 5x = 10 is to be determined.

What is the slope of the line?

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

Here,
The property of the parallel line state that the slope of the parallel line are always equal.
So the slope of line given in B 4y - 10x = 12 is m = 5 and slope of the given line is m = 5 which are equal.

Thus, the required equation of the line that is parallel to the given line is 4y - 10x = 12. Option B is correct.

Learn more about slopes here:

https://brainly.com/question/3605446

#SPJ2

At the science fair, Adriana uses 8 fluid ounces of vinegar to make her volcano erupt. How many times can she make her volcano erupt with 1 quart of vinegar?

Answers

Answer:

4 times

Step-by-step explanation:

We known that 1 quart is equivalent to 32 fluid ounces

Suppose each eruption consumes 8 fluid of ounces, if we also assume that the amount of vinegar required per eruption is constant, then the number of times Adriana can make her volcano erupt is

n = 32 / 8

n = 4 times

Adriana can make her volcano erupt 4 times with 1 quart of vinegar

I dont understand pls help me

Answers

Answer:

-1/3

Step-by-step explanation: it goes downwards from left to right so it is a negative and to reach the next line below it, it went to the right 3 units.

Therefore it is -1/3 :)

Which conversion is correct?

Question 12 options:

.15, 15%, 1/4


.70, 7%, 3/4


.25, 20%, 1/4


.75, 75%, 3/4

Answers

.75 75% 3/4 is the correct answer

Please help! If you have any questions please just ask

Answers

Genius can answer this okay don't worry

I need help with geometry

Answers

Answer:

ASA congruency and corresponding sides of congruent triangles are congruent

Step-by-step explanation:

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