My problem
2x-6y=12
-5x + 15y = -30

what do I do first? (Elimination)​

Answers

Answer 1

Answer:

multiply top equation by 5

multiply bottom equation by 2

Step-by-step explanation:

Answer 2

Try finding the x or y (which one you prefer) first then substitute your value (answer) into the new equation


Related Questions

which point in on the graph of

Answers

Answer:

(-2, 9)

Because it is (-2,9)

1. In Part A of this lab, you will measure the dimensions (length, width, diameter) of several geometric shapes. a. Using a ruler, you measure the length of a rectangle to be 12.75 cm and the width to be 3.64 cm. Calculate the area of this rectangle (show work), reporting your answer to the correct number of significant figures.

Answers

Answer:

The area of this rectangle is 46.41 cm²

Step-by-step explanation:

Area of a rectangle:

The area of a rectangle of width w and length l is given by:

[tex]A = wl[/tex]

That is, the area of a rectangle is the multiplication of its width by its lengt.

In this question:

[tex]l = 12.75, w = 3.64[/tex]

So

[tex]A = wl = 3.64*12.75 = 46.41[/tex]

Width and length in centimeters, so the area is in square centimeters.

The area of this rectangle is 46.41 cm²

HELP WILL GIVE BRAINLIEST!!!!!!!
Solve −4(x + 10) − 6 = −3(x − 2). (20 points)
−40
−46
−52
52

Answers

Answer:-52

Step-by-step explanation:

-4x-40-6=-3x+6

-4x-46=-3x+6

-52=x

Nathan bought 4 pounds of chicken for $8. How many pounds can he buy for $20? *

Answers

Answer:

The correct answer is 10 pounds of chicken

Step-by-step explanation:

First you do 8 divided by 4 to equal the unit price of 1 pound of chicken for 2 dollars then you do 20 divided by 2 to equal 10 pounds of chicken for 20 dollars

HAVE A GOOD DAY!

Figure A ~Figure B.
Figure A
Figure B
3 ft
10 ft
2 ft
4 ft
V = 120 cu ft
Find the volume of Figure B.
[?] ft!

Answers

Answer:

15 cu ft

Step-by-step explanation:

figure A~figure B

4-->2 ft

10-->5 ft

3-->1.5 ft

V=2×5×1.5=15 cu ft

The volume of Figure B is  15 [tex]ft^{3}[/tex]

What is  ratio of similarity  in similar figures?

The RATIO OF SIMILARITY between any two similar figures is the ratio of any pair of corresponding sides. Simply stated, once it is determined that two figures are similar, all of their pairs of corresponding sides have the same ratio.

According to the question

Figure A ≈ Figure B

Therefore , ratio of corresponding sides have the same ratio .

Figure A              Figure B

4 ft                ⇒         2 ft  (given )

( As ratio of [tex]\frac{side\\\ of\\\ figure A}{side\\\ of\\\ figure B} = \frac{2}{1}[/tex] )

10 ft                ⇒        5 ft

3 ft                ⇒         1.5 ft

Now, volume of Figure B (which is cuboid ) =  Length * Breath * Height

                                                                       =  2 * 5 * 1.5

                                                                       =    15 [tex]ft^{3}[/tex]

Hence, the volume of Figure B is  15 [tex]ft^{3}[/tex]

To know more about  ratio of similarity here:

https://brainly.com/question/39796

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Find the zeros of the function below.

\small -7x=x^2+12

Answers

Answer:

read explanation

Step-by-step explanation:

this is a quadratic equation

first, move the 7x over to the other side so that we have 0 on one side

x^2+7x+12=0

now, we can factor

turn 7x into 3x and 4x, so x^2+3x+4x+12=0

you can turn x^2+3x into x(x+3) and 4x+12 into 4(x+3)

so, our new equation is x(x+3)+4(x+3)=0

that can be turned into (x+4)(x+3)=0 via the distributive property

so, either x+4 or x+3 has to be equal to 0

so, x is either -4 or -3

hope this helped

Geometry Question, I will give brainliest. Need Help ASAP!

Answers

Answer:

A' = 103°

B' = 100°

C' = 80°

D' = 77°

Step-by-step explanation:

B' = 180 - 80 = 100°

C' = 80 because it is a corresponding to 80°

D' = 180 - 125 = 55, 180 - 48 - 55 = 77°

A' = 360 - 77 - 100 - 80 = 103°

pls answer both questions for branliest and 20 points

Answers

Answer:

1, 216

2. 576

Step-by-step explanation:

meth

Answer:

216 km ^2

Step-by-step explanation:

area of triangle = 1/2 x base x height

so

1/2 x 18 x 24

18 x 12

216 km ^2

A car travels 320 miles in 7.5 hours. If the car continues at the same rate, how far
will it travel in 12 hours?

Answers

Answer:

Step-by-step explanation:

put that info in a table then cross multiply and divide.

the answer is 512

Need answers right away due tonight please. Geometry composite shapes.

Answers

3x32=96
96x6=576
I think it says 32 if not the just change it to what it does say

Pls help, will give brainlest

Answers

P=2/3 the math is in the picture ☺️

Somebody help me asap please giving brainliest

Answers

Answer:

540 inches equals 45 feet and 15 yards (E,D,F)

Step-by-step explanation:

18 feet = 216 inches

           = 18 feet

           = 6 yards

10 feet = 120 inches

           = 10 feet

           = 3.333 (repeating) yards

540 inches = 540 inches

                   = 45 feet

                   = 15 yards

what is the answer!!!!​

Answers

Step-by-step explanation:

By linear pair

53+TRV=180

TRV=180-53=127°

HOPE it helps

Answer:

127

Step-by-step explanation:

HELP ME GENIUS PLEASE I AM SO TIRED OF DOING IT

Answers

Answer:

b and a i think

Step-by-step explanation:

8 cm
3 cm
4 cm
Find the area of the isosceles trapezoid.
A)
24 cm2
B)
30 cm2
C)
36 cm
D)
48 cm?

Answers

Explanation: to find the area of a triangle you do length x width and then divid that by 2 so 3x4=12 /2=6
you have two of the same triangles so 12. and then do 3x8=24
12+24=36
since it’s area 36cm^2
Answer c

Answer:

c. 36

Step-by-step explanation:

A= .5 (base 1 + base 2) h  <-----------area of a trapezoid formula

.5 ( 8 + 16) x 3  

.5 x24 x 3

.5 x 24=12

12x3=36

base one would be 8

base two is 16( you have that middle section which is 8cm and then those side sections which are each 4cm)

height is 3

Michael stacks 14 identical disks to form a cylinder. • Each disk is 1/4 inch thick. • The diameter of each disk is 3 inches. Which measurement is closest to the volume, in cubic inches, of the stack of disks?

Answers

Answer:

mplete results in the Gradebook and Mastery Dashboards; Start a class ... and a cylinder. What is the volume, in cubic inches, of the crayon balloon? 14 ... Which measurement is CLOSEST to the distance Jen walks to school each morning? 22 ... C-G.2.1.3. Q.Michael stacks 14 14 14 identical disks to form a cylinder.

Step-by-step explanation:

The volume of the cylinder will be 24.72 in³.

What is a cylinder?

In mathematics, a cylinder is a three-dimensional solid that holds two parallel bases joined by a curved surface, at a fixed distance.

Given that, the 14 identical disks are stacked to form a cylinder, each disk is 1/4 inch thick, and their diameter is 3 inches, we need to find the volume of the cylinder,

So, here we can say that the height of the cylinder is the sum of the thickness of all the disks,

So, height = 1/4 x 14 = 3.5 inches.

The volume of the cylinder = π × radius² × height.

= 3.14 × 1.5² × 3.5 [radius = diameter / 2]

= 3.14 × 2.25 × 3.5

= 24.72 in³

Hence, the volume of the cylinder will be 24.72 in³.

Learn more about cylinder, click;

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Select all the statements that are true about the triangles

Answers

Answer: yeah sry i need point

Step-by-step explanation:

This is my last question please help me!

Answers

Answer:

D) 0.848

Step-by-step explanation:

Marginal Relative Frequency is when you divide the square(s) by the very total, in this case: 231.

Dividing 196/231, you get 0.848484 repeating.

Hope it helps!!!

help me out i’m failing this class

Answers

Answer:

6. b

7.

8. d

9. a

Step-by-step explanation:

I'm not sure what 7 is but I can assure you that 6, 8, and 9 are correct

Pls help I need a good grade


Show your work for both of the questions only do 8 and 9

Answers

Answer:

CaN't SeE ThE LeTtErS...

Step-by-step explanation:

Answer:

8) 55 + 8.5x = 123

subtract 55 from both sides

8.5x = 68

x = 8 days

9) 6.75 + 1.25x = 31.75

subtract 6.75 on both sides

1.25x = 25

x = 20 refills

plzz help me I am in a math test plzz!

Answers

Answer:

I believe its b.Let know if I'm right

Answer:

option a is the answer

Step-by-step explanation:

because we compare the first digit after point if it is same with the second number we are comparing the second digit after point if they are also same then move on to third after point and so on

A rectangular prism has a length of 11 centimeters, a height of 13 centimeters, and a width of 2 centimeters. What is its volume, in cubic centimeters?

Answers

Answer:

286 cm

Step-by-step explanation:

Answer:

286 centimeters³

Step-by-step explanation:

identify variable:   L=11    W=2      H=13

use volume of a rectangular prism formula:   V=LWH

substitute variables into formula:         V=(11)(2)(3)

V=286 cm³

What are the vertices of APQR?
A. P, Q, and R.
O B. ZP, ZQ, and ZR
C. None of these
O D. PQ, QR, and PR
I need help

Answers

the answer is A hope i helped

The endpoints of the triangle, P, Q, R, are the vertices of the triangle.

Response:

The vertices of ΔPQR are;

A. P, Q, and R

How can the vertices be found from the name of the triangle?

The vertices of a figure are the points where two segments meet.

A triangle can be named by using the labels of the endpoints, which are

the vertices of the triangle, that are usually in capital letters.

Therefore;

The vertices of ΔPQR are; A. P, Q, and R

Learn more about triangles here:

https://brainly.com/question/68217

Is 6 a factor of 42x + 30y

Answers

I think so yes!!!!!!!!!!!!!!

You have 33 nickels and quarters whose value is $3.85. Find the number of nickels and quarters that
you have.
What is the answer

Answers

Answer:

11 quarters- 2.75

22 nickels- 1.10

mPlease help i will give extra points

Answers

Answer:

it would be 74

Step-by-step explanation:

8(10)-6=74

Answer:

74

Step-by-step explanation:

8a - b is actually 8 X 10 - 6 which is 74

For which value of k does the system has no solutions?
Equation:
3x + y = 4
kx + y = −2
Answers:
A: -3
B: -2
C: 3
D: 4

Answers

Answer:

The answer to this question is 4

Step-by-step explanation:


50 points! Please help me

Answers

Answer:

x = 8

y = 14

Step-by-step explanation:

2x + 6 = 4x - 10 (Corresponding angles so they're equal)

2x - 4x = -10 - 6

-2x = -16

x = 8

2x + 6 + 13y - 24 = 180 (Supplementary angles so they add up to 180)

2(8) + 6 + 13y - 24 = 180

16 + 6 + 13y - 24 = 180

13y - 2 = 180

13y = 182

y = 14

Please help and also no links please help me I’m a nice person and I need explanation

Answers

Answer:

5. I think it's 15% I'm not too sure about relative frequency.

6. Gum

7. 10%

8. I can't tell what's going on with the data there.

9. I can't tell what's going on with the data there.

10. I think it's 40% I still have no idea what relative frequency is.

Step-by-step explanation:

5. Each of the numbers added together is 200. 30 is how many there are that chose the waterpark. 30 is 15% of 200.

6. To find mode, add all of them together and divide by the number of them. 6+30+15+9=60/4=15.

7. 6 is 10% of 60.

8.

9.

10. The numbers added together are 60. 24 is 40% of 60.

.
-2x-6y= 36-4x
2(3x - 3y) =36
4x-6y + 36 = -2x

Answers

Answer:

a67y.....................

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