Mathematics Middle School

What is the solution to the system of equations? Use any method you prefer to solve.

y=4x-3y=4x−3

y=-2x+9y=−2x+9

a. (-3, 9)

b. (4, -2)

c. (2, 5)

(6, 21)

Answers

Answer 1

Answer:

b (4,-2)

Step-by-step explanation:

i dont really know how to explain it tbh

Answer 2
The answer is b your welcome

Related Questions

Please help me with this I am not good at math

Answers

The rate of change is 4 because it has an x after it in the equation which implies change
The rate of change would be 4

Jazmyn uses 2 gallons of paint to paint 5 walls. He uses 4 gallons of paint to paint 10 walls. How many gallons of paint does he use per wall?

Answers

Answer:

2/5 gallons

Step-by-step explanation:

If it takes 2 gallons of paint to paint 5 walls, then the amount of gallons used per wall can be calculated by comparison

[tex]5 walls = 2 gallons \\ 1 \: wall = x \: gallons \\ by \: cross \: multiplication \\ 5 \times x = 2 \times 1 \\ 5x = 2 \\ x = \frac{2}{5} [/tex]

Hence, 2/5 gallons of paint is used per wall.

. Ava makes bead necklaces. She has a total
of 6,048 beads. Each necklace has 24 beads.
Her friend Maria says that the greatest
number of necklaces she can make with the
beads is 162.

Explain why Maria’s answer is incorrect and
how she can find the correct answer.

Answers

By this point I’m sorry that you have been

ahh i think i got this wrong !! help please !

Answers

Answer:

the answer is three

v+0.54v

because v is the price of the violin and you are adding the og price to

54% of the price in order for it to be mark up

Solve for M, please
2m - 6 ≥ - 2

Easy 61 points

Answers

[tex]\\ \sf\longmapsto 2m-6\geqslant -2[/tex]

[tex]\\ \sf\longmapsto 2m\geqslant 4[/tex]

[tex]\\ \sf\longmapsto m\geqslant 4/2[/tex]

[tex]\\ \sf\longmapsto m\geqslant 2[/tex]

it's systems of linear equations btw

Answers

Each child ticket is 7$ and senior is 5$ and is this question from a packet? Bec I found the whole answer key online and I can send it to u if u want

i need help pleaseeeeeeeeeee

Answers

Answer:

D) 27

Step-by-step explanation:

4 + 2 = 6 (pets)

For each pet he spends $4.50, so:

6 × 4.50 =

6 × 4 = 24 +

6 × 0.5 =

6/2 = 3

24 + 3 = 27

So D.

:)

Answer:

D. Mr. Winston spends $27 dollars at the pet store.

Step-by-step explanation:

It's multiplication. He has 6 pets, he spends $4.50 for each pet.

4.50 * 6 = 27.

Mr. Winston spends $27 on pet food for his 6 pets.

Hope this helps!

If u like it, plz mark me as brainliest!

Which of the following is NOT between -7 and -4 on the number line?

-7.2

-4.8

-6

-5.01

Answers

Hi,

-7.2 is NOT between -7 and -4 on the number line.

✅(•‿•)

-7.2 would be the answer

Ok,so I need help on exactly how to do this questions on my homework…I don’t get it.

Answers

Answer:

11. 15  12. 8

Step-by-step explanation:

ok so

the big ones equal = 3

and small one equal =1

also red means negative and orange postive

so 9+ 6 equals postive 15

and 12- 4 = 8

Answer:

9 x 6 = 54

24 x -4 = -96

Step-by-step explanation:

If what you are saying is correct:

The first one is 9 x 6 = 54

The second one is 24 x -4 = -96

-Chetan K

Sophie read a total of 4 books in 2 months. Then, she read 10 books in 5 months. What is the constant of proportionality?

Answers

Answer:

The COP is 2.

Step-by-step explanation:

Do 4 divided 2 which is 2 and then do 10 divided by 5 to also get 2.

The constant of proportionality is 2.
This is because 4 divided 2 is 2 and 10 divided by 5 is also 2

Sapatra spent $80 at Mr. and Mrs. Crab. She left a tip of 20%. How much was the tip she left?

Answers

$80 x 20%=16% if we’re talking actual money bills it would be 9.6 US dollars there u go girlly hope it helped don’t know if I’m correct tho<33

Answer:

$16

Step-by-step explanation:

So Sapatra spent $80 at Mr. and Mrs. Crab and She left a tip of 20%. We can convert  20% into a decimal, that would be .2 when you move your decimal from the left 2 times and multiply 80 by .2. meaning her tip she left is $16

PLS ANSWER ASAP MEANING RIGHT NOW ;-; i'm losing brain cells
Suppose Enrique has two building blocks. The area of one face of one of the blocks is 4 square centimeters and the area of the face of the other block is 100 square centimeters. What is the scale factor from the smaller block to the larger​ block?

Answers

Answer:

I think the larger block has a scale 25 times bigger than the smaller block since 100 divided by 4 equals 25

Please tell me if I'm wrong

I hope this helps

:D

Answer:

The Scale factor is 5.  

Step-by-step explanation:  

Because the area has cm^2  to find the scale factor you find the number it takes to get from one area to the next and take the square root.

4X = 100

X = 100/4

X = 25 (Take the sqrt because of area)

X = sqrt(25)

X = 5

The Scale factor is 5.

Helppppp someone answered the first half but I need the second half

Answers

Answer:

i think its 182 dollars

Step-by-step explanation:

$192 i think because if you add both the cost of the bike and helmet you get 192

The model represents an equation. What value of x makes the equation true?

Answers

Answer:

D

Step-by-step explanation:

Answer:

4/7

Step-by-step explanation:

Plz help with all of these and I will give the best answer the brainiest Thx

Answers

A. Mai was successful on 10 of the free throws.

B. I think it would be 30?

question 2: 80mg

part b: go cart, bike, skateboard, scooter

question 3: 1,000 students
Just ask Siri!!!!! You got this!! Always ask siri

helppppppppppppppppp asap

Answers

Answer:

Step-by-step explanation:

Deeper than 32 i believe

I agree that it’s deeper than 32

Simplify 1/6(12x+24)+4x

Answers

Simplifique 1/6 (12x + 24) + 4x

6x+4

The minute hand on a clock is 15cm long. what area does it pass over in 1 hour (pls show working)

Answers

Answer:

the 12 on the clock

Step-by-step explanation:

Answer:

94.2cm in 1 hour.

Step-by-step explanation:

In 1 hour, minute hand completes one round means makes a circle.

Radius of the circle(r)=15cm

Circumference of circular clock=2πr

=2×3.14×15=94.2cm

Therefore, the tip of the minute hand moves 94.2cm in 1 hour.

What is the slope of the line y=35x+7 ?

Answers

Answer:

Slope is 35

Step-by-step explanation:

Answer: slope is 35

 y-intercept: (0,7)

Step-by-step explanation:

I NEED HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ I WILL MARK BRAINLEST

Answers

Answer:

EQUAL TO

Step-by-step explanation:

Equal to would be the answer

Explanation: When plugging in numbers and matching the graph with an equation you get that answer therefor the equation is equal to it

Hope I helped! (Would appreciate Brainliest) :)

The equality [tex]\sqrt{x^{2}} =-x[/tex] is true for ______________

format the answer should be in:
[tex]x\ \textless \ -3; x\ \textless \ 3\ \textless \ 7; x; x\ \textgreater \ 7[/tex]

Answers

Answer:

X < -3

Step-by-step explanation:

-x will be positive when x < -3

If tony made 378$ for 18 hours of work how many hours would he work to make 231$?

Answers

Answer:

11

Step-by-step explanation:

378 / 18 = 21 // Money p/h

231 / 21 = 11

Answer:

11 hours

Step-by-step explanation:

378/18

21

231/21

11

giving brainless out get it right

Answers

Answer:

97.5

Step-by-step explanation:

Supplementary angles always add up to 180.

180 - 82.5 = 97.5

Answer:

97.5

Step-by-step explanation:

180-82.5=97.5

Supplementary means they add up to 180 degrees.

So just subtract 82.5 from 180. You get 97.5

I want that brainliest O^O

The Wing Station wants the average price of the lunch meal deals to be $8.

What does the price of the chicken wings need to be for this to happen?

Answers

Step-by-step explanation:

To calculate the mean, we do the the total divided by the number of values. With 6 values, for the average to be 8, the total needs to be 48. The current total is 41, so Chicken Wings needs to be 7, because 48-41=7

The chicken wings need to be 7 dollars

Which comparisons are true? Select all that apply.

A.
7
.
34
>
7
.
304
B.
1
.
628
>
1
.
63
C.
4
.
05
<
4
.
055
D.
9
.
103
<
9
.
13
E.
2
.
29
<
2
.
129

Answers

Answer: i got D make sure you double check on ur end

Step-by-step explanation:

Organize everything and I’ll help you

Kala invested $8000 in a fund for 6 years and was paid simple interest. The total interest that she received on the investment was $2400. As a percentage, what was the annual interest rate of her investment?

Answers

Answer:

33.3%

Step-by-step explanation:

8000 divided by 2400 is 3.33

3.33 x 10 is 33.3 to make it out of 100%

so she gets one third of her investment

Write a function rule for the statement.

The output is the cube of the input.

y=?

Answers

y is your output
x is your input
so this means x^3 is cube of input

so it should be x^3=y
X^3=y I believe! Also I love your profile picture <3

This composite figure is made of three identical cylinders that are connected together

Radius:3 Height:8

Answers

The surface are of a cylinder is

SA = 2πr2 + 2πrh

where:
r = radius
h = height

This formula comes from adding the areas of the surfaces of the cylinder. It has two flat circular faces and a rounded face.

If we cut the cylinder from the circular face symmetrically, the surface area for one piece will be

SA = 2[(πr2)/2] + (2πr/2)h + 2rh

We will have 2-half flat circular faces, a flat rectangular surface, and half of the rounded surface.

Simplify the SA formula.

SA = πr2 + πrh + 2rh
SA = r(πr + πh + 2h)

Substitute the values into this formula.

SA = 3(3π + 8π + (2*8))
SA = 3(11π + 16)
SA = 33π + 48
SA = 151.67 cm2

Since we have 2 pieces, multiply this result by 2.

2(151.67 cm2) = 303.34 cm2.

The total area is 303.34 cm2.

The gasoline consumption of a bus is 30l/100km and of a car is 9l/100km. To go on a 250 km trip, 30 people can either go by car with 5 people in each car or take one bus for all 30 people. Which method of transportation uses less gasoline, and how much less?

Answers

Answer:

The bus will take less consumption and by 60 litre

Bus uses less gasoline by 601.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Case 1: Bus

Consumption/ 100Km= 301

and, for 250 Km= 301 /100 x 250

                          = 751

Case 2: Car

Total = 80 people

Total cars= 30/5 = 6

Consumption/ 100Km= 91

and, for 250 Km= 91 /100 x 250

                          = 22.51

Consumption by 6 cars = 6 x 22.51 = 1351

Difference between Gasoline Consumption = 1351-751 = 601

Learn more about Unitary Method here:

https://brainly.com/question/22056199

#SPJ2

5. Using the equation y=2x+5, construct a table and graph the line

Answers

Step-by-step explanation:

What you are going to do is for each value of x (which is the value to the right on the table) you will find the Y value.

So for X = 0

y = 2(0)+5 = 5

x = 1

y = 2(1)+5 = 7

x = 3

y = 2(3)+5 = 11

x = 5

y = 2(5)+5 = 15

x = 10

y = 2(10)+5 = 25

Now for what you do is place the correspanding value into the graph.

(x,y) = (0,5), (1,7), (3,11),(5,15),(10,25)

Answer: See the graph below.

Step-by-step explanation:

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