(HELP) solve the system by substitution. check your answer.
4x+5y=7
x=5y+8​

Answers

Answer 1
For this equation after the substitution you will get y=-1.

Related Questions


Bananas cost $0.79 a pound. Mrs. Huff bought p
pounds of bananas. She paid a total of $7.90.
Write an equation to represent the situation.

Answers

7.90=0.79•p this is the equation your looking for

Answer:

p x 0.79 = 7.90 or 0.79 x p =7.90

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Natalia is writing a recursive formula to represent the sequence.
8, 12, 18, 27, ...

What value should she use as the common ratio in the formula?

1/4, 2/3, 3/2, 4/1

Answers

3/2 is the common ratio value

Answer:

The answer to your equation would be 1.5.

Step-by-step explanation:

The common ratio if there exists one can be found by choosing a term and dividing by its previous term

So does 12/8=18/12=27/18? Put each into the calculator. If they are equal fractions then this sequence is geometric and has a common ratio.

Each of the fractions are equal to 1.5.

Therefore the commom ratio is 1.5.

−2 4/5 ÷ (−7) i need this i will give brainiest

Answers

Answer:

0.4

Step-by-step explanation:

Pls mark me brainliest! :D

Answer:It is 0.4 or 2/5

Step-by-step explanation:

Hope this helps!!

solve the system by equations. how many solutions does it have?
3x + 4y = 12
-6x - 8y = -24

A. infinitely solutions
B. 1 solution
C. 2 solution
D. no solution​

Answers

Answer:

2 solutions

Step-by-step explanation:

in most cases, linear equations have two solutions depending on which unlike terms you decided to simplify first

I ant get any wrong please help

Answers

Answer:

b

Step-by-step explanation:

what is the value of p

Answers

Answer:

p = 61 degrees

Step-by-step explanation:

The sum of all angles that make up a striaght line is 180 degrees. To find p you just subtract the other angles from 180: 180 - 87 - 32 = 61.

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Answers

Answer:

okay but it is a LOOP loop Left to a more important point is that the answer to this area is to be randomly in the project

Step-by-step explanation:

point

Answer:

c

Step-by-step explanation:

0.25 is the amount of rain that is falling, so that is the slope (0.25t)

2 is the y-int because it is the starting point. It was already there (+2)

so the equation is; 0.25t+2

ABCD is a rectangle. Find the mCED

Answers

Answer:8.5...

Step-by-step explanation:

Alright, Since my previous questions have not been answered, here's 50p to whoever solves this


Two times x is 16 more than y. The sum of x and two times y is 18.
find the value of y.

Answers

Step-by-step explanation:

We can make 2 equations as follows:

2x = y + 16 and x + 2y = 18

x + 2y = 18 is the same as x = 18 - 2y. Hence, 2(18 - 2y) = 2x = y + 16.

2(18 - 2y) = y + 16

36 - 4y = y + 16

5y = 20

y = 4.

Fraction math problems, have lots tonight need help for some

Answers

Answer:

5

Step-by-step explanation:

My little sis needs help

Answers

Answer:

603 miles in 3 days

Step-by-step explanation:

Let's find out how many miles in 1 day:

1,005 ÷ 5 = 201So, Sarah drives 201 miles in 1 day

Let's find out how many miles in 3 days:

3 days = 1 day × 33 days = 201 × 3 3 days = 603 miles

I hope this helps!

what is the volume of this cube?
A. 64 cubic centimeters
B. 512 cubic centimeters
C. 384 cubic centimeters
D. 192 cubic centimeters ​

Answers

Answer:

512 cm^3

Step-by-step explanation:

side of the cube = 8cm

volume=8*8*8=512cm ^3

Ed wants to build a small 800 square foot cabin on a lot that is 80 feet deep. If the building sideyard setbacks are 20 feet and the cabin is 20 feet wide, what is the square footage of the lot

Answers

Answer:

4800 ft²

Step-by-step explanation:

Given that :

Area of cabin = 800 ft²

Width of cabin = 20 feets

Side yard setback of building = 20 feets

Depth of lot = 80 feets

The cabin is a rectangle :

Area of rectangle = Length * Width

800 = length * 20

Length = 800 / 20 = 40 feets

Hence,

Width of lot = side yard + Width of cabin = (20 + 20) = 40 feets

Length of lot = depth +. Length of cabin = (80 + 40) = 120 feets

Area of lot = Length of lot * width of lot

Area of lot = 120 ft * 40 ft = 4800 ft²

all you need is in the photo
answer fast
please ​

Answers

Answer: c

Step-by-step explanation:

Answer:

The answer is C

Step-by-step explanation:

I need help pls go to my page and answer the finance question it a lot of points.
DON'T ANSWER SOMETHING IGNORANT

Answers

Where is the question located I can’t find it

Noel Magee purchased a micro-cut shredder at a sale price of $179.99. The regular selling price is $199.99. He also purchased a photo-smart printer at 25% off the regular price of $499.99. A. What is the markdown on the shredder? B. What is the markdown on the printer?

Answers

Answer:

a) 10% off or $20 off

b) 25% off or $124.99 off

Step-by-step explanation:

In order to find the markdown on the shredder we simply need to divide the sale price by the original price. Once we have that we subtract that decimal from 1 and multiply by 100 to get the markdown percentage. We can also subtract the original price from the sales price to get the markdown dollar value.

179.99 / 199.99 = 0.899

(1 - 0.899) * 100 = 10%

199.99 - 179.99 = $20

Now, for the printer we are provided the markdown perentage so to find the markdown dollar value we need to divide the perentage by 100 to turn it into a decimal and multiply that decimal by the regular price of the printer. We can also subtract the markdown dollar value from the original price to get the sale price...

25% / 100 = 0.25

0.25 * 499.99 = 124.99

499.99 - 124.99 = $375

Identify each value of x that makes 11 + 2x < 13

Answers

Answer:

x < 1

Step-by-step explanation:

This is the answer because:

1) 11 + 2 = 13 and 13 is not less than 13, it is equal to 13. Therefore, x has to equal anything less than 1 because then only inequality statement will be true.

Therefore, the answer is x < 1.

Hope this helps! :D

The value of x that makes 11 + 2x < 13 is x < 1

Given:

11 + 2x < 13

< means less than

11 + 2x < 13

Subtract 11 from both sides

11 + 2x - 11 < 13 - 11

2x < 2

divide both sides by 2

x < 2/2

x < 1

x less than 1

Therefore, the value of x that makes 11 + 2x < 13 is x < 1

Learn more about inequality:

https://brainly.com/question/18881247

To buy a car, Jason makes a down payment of $1500 and pays $350 per month in installments. The equation =350+1500 represents the total amount he will spend on his car.

How much has Jason paid at the end of one year? $

Answers

Answer:

if nth term of the AP 3,10,17.... is same as the nth term of the AP 63,65,67.... find n.

Step-by-step explanation:

please solve this also it's hard for me

He paid 5,700$ at the end of the first year

Meghan went out to lunch. Her food costs $11.62. A 6% sales tax was
added, so how much was her total bill?

Answers

Answer:

$12.31

Step-by-step explanation:

11.62 divided by 2 =0.69

$11.62+$0.69=12.31

25/c = 50/40

what does c equal?

Answers

Answer:20

Step-by-step explanation:

Find a unit rate: Joel ran 1500 meters in 6 minutes, 15 seconds.

Answers

Answer:

240 metres per minute

Step-by-step explanation:

1500 / 6.25 = 240

Pleaseeeee helpppp !!!!!!!! Will mark Brianliest !!!!!!!!!!!!!

Answers

Answer:

so this uses proportions.

you need to find the side BF which is proportional to the side BF.

You do:

9/6=x/42

and cross multiply

9*42=6*x

378=6x

divide by 6 on both sides

x=63

the answer is 63

Answer:

These are similar triangles.

By changing the length of the base of the corresponding triangle, the 3 interior angles of this triangle remain equal to the original

Therefore, if these triangles are similar, their corresponding sides must give equal ratios to each other:

This means that BF/FE = BC/CD=FC/ED

The total length of line segment BD=BC+CD; BC=6, CD=42; BD=6+42, BD=48

BE=BF+FE; BE=9+?

if BF/FE=BC/CD then 9/BE=6/42; 6/42=3/21 or 1/7. 9/BE=1/7; 1/7=9/BE

1x9=9, 7x9=63

63=BE

Step-by-step explanation:

WILL GIVE BRAINLIEST IF IT IS RIGHT AND EXPLAINED

Answers

Answer: x=36 degrees

Step-by-step explanation:

Angle EAF and FAB must equal 180 degrees together as all straight lines do. 36 times 3= 108 degrees so 3x=108 degrees. 36 times 2= 72 degrees so 2x=72 degrees. Therefore, 3x+2x=180 degrees.

select the correct answer

Answers

Hey how long do I have to complete this?

Describe the error?

38 + 7k = 8k + 12
-8k -8k


38 - 1k = 12
-38 -38

-1k = -26
/-1 /-1

K = 26

Answers

Answer:

Step-by-step explanation:

K=26

Y= -2x+4 by graphing

Answers

This is the graph for the equation

Answer:

See attached file.

Step-by-step explanation:

This can be graphed by plugging in two distinct x values and solving each for y.  That will give you two x,y coordinates to draw on the graph, which will let you trace the line defined by them.

You can get the points where the line intersects the axis by solving either variable for zero.  Try giving x a value of 2 or 0 to find those.

What is the measure of angle x?
Enter your answer in the box
102
mZx
315

Answers

Answer:

x = 47°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

subtract the sum of the given angles from 180 for x

x = 180° - (31 + 102)° = 180° - 133° = 47°

Type the correct answer in the box. Round your answer to the nearest integer.
B
D
30
35
А
с
In the figure, if m ZABD = 120°, then mZADC =
0.

Answers

Answer:

m∠ADC = 132°

Step-by-step explanation:

From the figure attached,

By applying sine rule in ΔABD,

[tex]\frac{\text{sin}(\angle ABD)}{\text{AD}}=\frac{\text{sin}(\angle ADB)}{AB}[/tex]

[tex]\frac{\text{sin}(120)}{35}=\frac{\text{sin}(\angle ADB)}{30}[/tex]

sin(∠ADB) = [tex]\frac{30\text{sin}(120)}{35}[/tex]

                 = 0.74231

m∠ADB = [tex]\text{sin}^{-1}(0.74231)[/tex]

             = 47.92°

             ≈ 48°

m∠ADC + m∠ADB = 180° [Linear pair of angles]

m∠ADC + 48° = 180°

m∠ADC = 180° - 48°

m∠ADC = 132°

On Monday a toy store sold for race cars on Tuesday it’s sold eight race cars on Wednesday it’s sold 16 race cars suppose this pattern continues how many race cars will be sold on Friday describe a room down solve

Answers

Answer:

64 cars

Step-by-step explanation:

because he is multipling by 2

Monday 4

Tuesday 8

Wensday 16

Thursday 32

Friday 64

Answer: On Friday the toy store would have sold 256 race cars.

Step-by-step explanation: The pattern is x2 each number.

M: 4

T: 8

W: 16

T: 32

W: 64

TH: 128

F: 256

Jacob and Kerrie are trying to figure out how long they can live off their $84,670 savings if they spend $370 each month. They have each created an equation. Jacob's Equation Kerrie's Equation y = 84,670 + (370x) y = 84,670 − (370x) Which person has the correct equation to model this linear relationship?
A.Kerrie's equation is incorrect, because their spending will increase the amount of their savings. B.Kerrie's equation is correct, because their spending will be multiplied by the number of months and then subtracted from their savings. C.Jacob's equation is correct, because their spending will be multiplied by the number of months and then subtracted from their savings. D.Jacob's equation is incorrect, because their spending should be a fixed amount and should not be multiplied.

Answers

Answer:

B.)Kerrie's equation is correct because their spending will be multiplied by the number of months and then subtracted from their savings                

Step-by-step explanation:

Given :  Jacob and kerrie are trying to figure out how long they can live off their 84,670 savings if they spend 370 each month.

To Find: Which person has the correct equation to model this linear relationship?

Jacob's equation : y = 84,670+(370x).

Kerrie's equation : y=84,670-(370x).

Since they have 84670 in savings

They spend each month = 370

They spend in x months = 370x

So, spending this amount from saving they left with amount = 84,670-(370x)

Thus Kerrie's equation is correct .

Hence Option B is correct  

B.)Kerrie's equation is correct because their spending will be multiplied by the number of months and then subtracted from their savings

hi remember me this is your answer :0

Answer:

the answer is B

Step-by-step explanation:

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