Mathematics High School

Solve the system using elimination.

Answers

Answer 1

Answer:

x = 6

y = 4

Step-by-step explanation:

5x - 7y = 2

x - 7y = -22 (Multiply by -1)

-x + 7y = 22

5x - 7y = 2

4x = 24

x = 6

x - 7y = -22

6 - 7y = -22

-7y = -28

y = 4

Related Questions

I need help with math!!

*PLEASE NO LINKS*

I will mark you brainiest if you don’t send a link!!

Answers

Answer:

#1 - y = 2x

#2 - x is days for sale and y is times viewed

#3 - 80

#4 - 35

Step-by-step explanation:

Please help me I know it's A but I don't know why.

Answers

Answer:

Maybe try explaining that if you narrow it down and simplify the numbers by dividing them by 8 or somewhere around there.

X Kawika had to raise the flag this morning. The 15 ft flag pole casted at
shadow with the ground at a 35° angle. What is the length of the
shadow? (Round answers to the nearest tenth) *
Answer with JUST THE NUMBER, without writing out the unit after the number.

Answers

Add 15 + 35 then take that and subtract it from the answer you get

The two pentagons are similar. Find the missing side lengths.
X
12 ft
y
15 ft
21 ft
3
21 ft
N
18 ft
24 ft

Answers

Where is the figure??

ALGEBRAICALLY solve the following system of equations:
y= 22 - 4x + 6 and y=x + 2

Answers

The answer for y=22-4x+6 is 0=22-4x+6
And apart of it 4x=28and x=7

And for y=x+2 is 0=x+2
Apart of it -x=2 and x=-2

I need help on this question

Answers

The correct answer is c.3/2

A sphere has a diameter of 4(x+3) centimeters and a surface area of
784 square centimeters. Find the value of x.

Answers

Answer:

78 square centimeters

Step-by-step explanation:

Reagan rides on a playground roundabout with a radius of2.5 feet. To the nearest foot, how far does Reagan travel over an angle of 4π/3 radians?

Answers

Answer:

10 feets

Step-by-step explanation:

Given that:

Angle, θ = 4π/3

Radius, r = 2.5 feets

To obtain how Far Reagan traveled, we calculate the Length of the arc, s

s = r*θ

s = 2.5 feets * 4π/3

s = 10π/3

s = 10.4719

To the nearest foot ; distance traveled by Reagan is 10 feets

Carson packed his movies in a box that is in the shape of a rectangular prism. The height of the box is 17 inches. The length of the box is 1.5 times the height. The volume of the box is 5,635.5 cubic inches. What is the width of the box?

Answers

Answer:

Width: 13 inches

Step-by-step explanation:

To find the width of prism you would have to divide the volume of the prism by the area of the cross section.

First calculate the area of the cross section of the prism:

17 × 25.5= 433.5

Then divide the cross section area by the volume:

5635.5 ÷ 433.5= 13

The width is 13 inches

Colby made a scale model of the Washington Monument. The monument has an actual height of 554 feet. Colby’s model used a scale in which 1 inch represents 100 feet. What is the height in inches of Colby’s model?

Answers

Answer:

500043004030405.3

Step-by-step explanation:

5.54 inches in my opinion

Plz help ASAP !!!!! Plzzz

Answers

Answer:

The second one

Step-by-step explanation:

She started with x dollars and then used 8 dollars to buy a football game ticket, so x-8. Then, she is left with 56 dollars, so x-8=56. Therefore, the second story represents the equation.

On Tuesday afternoon at camp, Eve did archery and sailing before dinner. Archery started at 12:30p.m. Eve spent 1 hours and 25 minutes at archery and 45 minutes sailing. What time did sailing end?

Answers

Answer:

2:40

Step-by-step explanation:

Add 85 minutes to 45 minutes and then add that to 12:30

ill give brainliest

Your options are:

A. 115
B. 42
C. 159
D. 21

Answers

Answer:

the answer is D

Step-by-step explanation:

3x-21=x+7

2x-21=7

2x=28

x=14

substitute x for 14

14+7=21

2X14-21+21

Which of the following is NOT true for 6s + 25 + 5? *
A. Represents an algebraic expression
B. There is only one value for s
C. A phrase that simplifies to two terms
D. There is a solution for s = 5

Answers

Answer:

B. There is only one value for s

Step-by-step explanation:

I hope this works for u.. :3

Can I have a brainliest plz :))

Evaluate the following expression.

1/5^-2

Answers

The answer is 25. I hope this helps.

Sandra needs a new bicycle tire. Her tire has a circumference of 26π inches. What is the radius of her tire?

Answers

Answer:

it should be by mult by 10 is 816.81

What is the compound ratio of 3:4 and 4:5?

Answers

Use this link i cant put it

A cylinder has a base radius of 6ft and a height of 18ft. What is its volume in cubic ft, round to the nearest tenth?

Answers

Answer: 2035.8

Step-by-step explanation:

The volume of the cylinder is 2034.72 cubic ft

What is the volume of the cylinder?

The volume of a cylinder is the capacity of the cylinder which calculates the amount of material quantity it can hold or we can say the volume of a cylinder is the number of unit cubes that can be fit into it. The formula for volume of cylinder is V = A × h

Assuming the given cylinder is Right Circular Cylinder

Then the formula is V = πr²h

From the question radius (r)= 6ft

height (h)=18ft

volume (V)= π× 6² × 18

=2034.72 cubic ft

Thus the volume of the cylinder is 2034.72 cubic ft

To know more about volume of cylinder click here

https://brainly.com/question/16177070

#SPJ2

1 point
Finish the similarity statement. (Note: your answer will be the 3 letters of
the other triangle. You must place them in the correct order and use
CAPITAL letters!) APQR-4
R
4 in
6 in
VA
8 in
4 in
3 in
2 in

Answers

YOUR ANSWER IS ANGLE BAC

PLEASE HELP ME SOMEONE. How do I do this? Please explain and I will give you crown.

Answers

Answer: the one in the bottom right

Step-by-step explanation: each month which is the x axis ( the bottom line) the y axis (line on the left) goes up by 5

so when the x axis is 1 the y axis should be at 5

Consider the function shown below.
g(x) = 2^x
If the function g is horizontally compressed by a factor of 1/2 and reflected across the x-axis to obtain function f, which of the following graphs matches the above transformation?

Answers

The graph of the transformation by of horizontally compressing g(x) by a factor of 1/2 and then reflecting across the x-axis is graph Y

How to determine the graph?

The function is given as:

[tex]g(x) = 2^x[/tex]

When compressed horizontally by a factor of 1/2, the transformation rule is:

g'(x) = g(2x)

So, we have:

[tex]g(2x) = 2^{2x}[/tex]

[tex]g(2x) = 4^x[/tex]

When reflected across the x-axis, the transformation rule is:

[tex](x,y) \to (x,-y)[/tex]

So, we have:

[tex]f(x) = -4^x[/tex]

The graph represented by this is graph Y.

Hence, the graph of the transformation is graph Y

Answers

Answer:

.5428571 repeating

or 19/35

[tex]8 \times \frac{3}{4} [/tex]

Answers

Answer:

Step by step explanation:

8 × ¾ = ²⁴⁄₄ = 6

Answer:

Step-by-step explanation:

You can solve this equation in multiple ways:

1) Change [tex]\frac{3}{4}[/tex] into a decimal

[tex]\frac{3}{4} = .75[/tex][tex]8[/tex] × [tex].75 = 6[/tex]

2) Change [tex]8[/tex] into a fraction, and multiply that way.

[tex]8 = \frac{8}{1}[/tex][tex]\frac{8}{1}[/tex] × [tex]\frac{3}{4} = \frac{24}{4}[/tex][tex]\frac{24}{4} = 6[/tex]

A sphere has a radius of 5 inches. What is its volume?
4
Sphere V= 3
2. Substitute the radius into the formula:
V = 4659
2. Evaluate the power
V = 4(125)
3 Simplify:
VE
It in

Answers

The volume of a sphere with a radius of 5 inches should be 523.6

El costo de un servicio de taxi en la CDMX es de $27.73 por el banderazo más $1.84 por cada kilómetro recorrido. Si una persona pagó $82, ¿cuántos kilómetros recorrió el taxi? PLANTEA Y RESUELVE EL PROBLEMA COMO ECUACIÓN *

Answers

Answer:

use the link it helps alot

Two square posters are hanging on a wall. The large poster has an area of 144 square units, and the small poster has an area of 100 square units. How much bigger is the perimeter of the large poster than the perimeter of the small poster?

Answers

Answer:

Step-by-step explanation:

If you do the math with the area to find out the perimeter, and you will find the largest one to be the poster with the area of 144 , and the smaller one to be the one with the area of 100

Answer:

Length= squre root of area

Length of big poster = squre root of 144

=12

Length of small poster=squre root of 100

=10

The perimeter = 4*length

Big poster perimeter=4*12=48

Small poster perimeter =4*10=40

The difference= 48 - 40 = 8

It is bigger by 8

On her coffee table, Anita has a pile of 9 magazines. She plans to get through 2 of them over
the weekend. How many sequences of 2 magazines are possible?
sequences

Answers

Answer:

either of the 2 is read so the answer is 2/9

25 points !! Please help me! What’s the volume to this question? Urgent !

Answers

Answer:

381 in^3

Step-by-step explanation:

The volume of the green block is V1 = length(width)(height), or

V1 = (16 in)(7 in)(3 in) = 336 in^3, and

the volume of the red triangular prism is V2 = (1/2)(3 in)(5 in)(6 in) =

V2 = 45 in^3

So the total volume is the sum of these two results: 381 in^3

CAN SOMEONE answer this question please

Answers

Answer:

x = 18

y = 27

Step-by-step explanation:

Answer:

x = 18

y = 27

Step-by-step explanation:

3 1/3 x 4 3/4 please

Answers

15 5/6 this should be your answer:)

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