Mathematics College

Find the solution of this system of equations. Separate the x- and y- with commas.

x = -6 + y
and
-7x + 9y = 8

Answers

Answer 1

Answer:

x = -23

y = -17

Step-by-step explanation:

[tex]x = - 6 + y \\ - 7x + 9y = 8 \\ \\ - 7( - 6 + y) + 9y = 8 \\ 42 - 7y + 9y = 8 \\ 2y = 8 - 42 \\ y = \frac{ - 34}{2} \\ y = - 17 \\ \\ x = - 6 + y \\ x = - 6 + ( - 17) \\ x = - 6 - 17 \\ x = - 23[/tex]

Answer 2

Answer:

Step-by-step explanation:

-7(-6 + y) + 9y = 8

42 - 7y + 9y = 8

2y + 42 = 8

2y = -34

y = -17

x = -6 - 17

x = -23

(-23, -17)

Related Questions

Which of these is an algebraic expression? A. 3-14 B. 14-3 C. 14-n=5 D. 14-n

Answers

The answer is C because for algebraic expression you need a coefficient, variable and a constant

A moving truck can take up to 4,530 Ib. Oliver backed 50 boxes;each box weighs 34 Ib. After Oliver loaded all the boxes, how many more pounds of cargo can the truck hold
A.2,800
B.1,200
C.2,400

Answers

The answer has to be A ...well that’s what I got...I multiple 50*34 and then minus from 4,530lb

2) which of the following graphs have one or More solutions?
Blue:
Green:
Purple:
Pink:

Answers

Blue I’m pretty I can’t see a picture but I’m pretty sure blue

I NEED HELP ASAP!! BRAINLIEST TO BEST ANSWER!!!!!!!!!!!!!! The moving van traveled 455 miles in eight hours and 45 minutes what was the average speed?

Answers

Answer:

52 miles per hour

Step-by-step explanation:

455 miles in 8 hr 45 min =

455 miles in 8.75 hours

[tex]\frac{455 miles}{8.75 hours} = \frac{x}{1 hour}[/tex]

8.75(x) = 455(1)

[tex]\frac{8.75(x)}{8.75} = \frac{455(1)}{8.75}[/tex]

x = 52

Best buy sells a stereo system for $650. Their cost was $450. What is the percent markup

Answers

Answer:

30.76%

Step-by-step explanation:

subtract 450-650=200

200÷650×100=30.76

(please help ASAP ill mark brainiest)
Nathan is building a toolshed with a rectangular floor. The area of a rectangle is given by the formula I . w, the length, and w represents the width. The floor of the shed will have measurements of either 1 = 9 and w=7 or I=8 and w = 8. What is the area of the larger floor?

Answers

Answer:

64

Step-by-step explanation:

Plug the options into the given equation (l times w) and then choose the larger value.

7x9=63

8x8=64

64>63

64 is the greater value

The answer for the area of the large floor is 64

Juanita has saved 25% of the money that she needs to buy a new bicycle.
If she saved $60, how much money does the bicycle cost?

Answers

Answer:

15

Step-by-step explanation:

$180.

.............................

PLS HELP I HAVE 5 MIN TO FINISH help its only 3 questions pls

Answers

Answer:

See below.

Step-by-step explanation:

2.) 1/4 pound

3.) 0 and 1

4.) 5

The triangle shown is reflected across the
y-axis

Answers

Answer: The image of the triangle is located on the 4th quadrant.

Find the slope of the line whose equation is 17 + 3y = 7x.

17/3
-7/3
7/3

Answers

Rewrite the equation for y:

17 + 3y = 7x

Subtract 17 from both sides:

3y = 7x -17

Divide both sides by 3:

y = 7/3x -17/3

The slope is the number in front of x which is 7/3

The slope is 7/3

Answer:

7/3

Step-by-step explanation:

Hope this helps.

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
I DONT KNOW HOW TO GRAPH SO CAN YOU SHOW ME HOW TO DO IT
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Answers

Answer and Step-by-step explanation:

First, plot the y-intercept. This is (0, -8)

So, go down -8 units from the origin (0,0).

Now, go down 3 and right 1 units from -8, until you reach the bottom. Do the same thing from -8 but up 3 and left 1 unit.

This is what it should look like:

#teamtrees #WAP (Water And Plant)

Find the shaded area
Help please

Answers

Answer:

Area= 49[tex]\pi[/tex] or 153.94 or 147 (Since Pi= 3)

Circumference= 14[tex]\pi[/tex] or 43.98 or 42 (Since Pi= 3)

Step-by-step explanation:

[tex]A=\pi rx^{2}[/tex]

[tex]C=2\pi r[/tex]

HURRY PLEASEEEEEEEEEEE. A coordinate plane. The point (5, 5) is in Quadrant . The point (3, –2) is in Quadrant . The point (–4, –4) is in Quadrant .

Answers

Answer:

point (5, 5) is in Quadrant: I  (1)

point (3, –2) is in Quadrant: IV   (4)

The point (–4, –4) is in Quadrant: III   (3)

Step-by-step explanation:

Answer:

The point (5, 5) is in Quadrant  

✔ I

    II

    III

    IV

The point (3, –2) is in Quadrant  

    I

    II

    III

✔ IV

 

The point (–4, –4) is in Quadrant

    I

    II

✔ III

    IV

Estimate 10/11 x 1/9. BRAINLIEST TO PEOPLE WHO ANSWER CORRECTLY!!
A. about 1
B. about 2
C. about 0
D. about 1/2

Answers

C is the answer to the problem

4/9 + 2/7 simplest form

Answers

Answer:

46/63

Step-by-step explanation:

Answer:

46/63

Step-by-step explanation:

4/9 +2/7

4/9*7/7+2/7*9/9

28/63+18/63

46/63

that is the simplest form, no simplifying can be applied

46/63

Someone please help asap!

Answers

Answer:

in order u put them in, 8 top, 12 bottem, 32 top, 30 bottem

1 and -1 is nonlinear or linear

Answers

Answer:

liner

Step-by-step explanation:

they look like a line on a graph

PLLLLLLZZZZ HELP IT's DUE IN AN HOURRRRR!!! It's for middle school not college.
Elaine went apple-picking to practice making apple pies for the upcoming state fair’s apple pie competition. At the orchard, she picked 60 apples. When she arrived home, she realized that 15% of them were rotten, so she had to throw those out.

Write two expressions that represent the number of apples Elaine has left to make apple pies.

Answers

Answer:

I'm not 100% this is correct because i dunno what your teacher is looking for so

Step-by-step explanation:

15% of 60 is 9%, so

60-15%= 9%

100%-15%= 91%

60- 0.15= 0.09

.100-0.15= 0.91

Simplify 32 ⋅ 35. (4 points)

Question 3 options:

1)

37

2)

310

3)

97

4)

910

Answers

Answer:

Jul 25, 2019 — Click here to get an answer to your question ✍️ 3. Simplify 32 • 35 ... 3. Simplify 32 • 35. (4 points) 37 310 97 910. 2. See answers. Log in to ...

2 answers

Step-by-step explanation:

PLEASE I BEG YOU I BEGG ANYBODY HELP ME WITH THIS

Answers

Answer:

Step-by-step explanation:

With what?

ok I'll help but I don't know the question can you please tell me the question first

3x + 5+ y + 12 + 2x + x + 3+ 4y

Answers

The answer would be 6x + 5y + 20. So it would be C.

What is the value of x? Round to the nearest tenths place. *

Answers

What is x? I don’t see nothing

Find the quotient.
63,145 - 365

Answers

Answer:

Subtracting: 62,780

Dividing: 173

Step-by-step explanation:

63,145 - 365 = 62,780

63,145 ÷ 365 = 173

The cost of a bagel increased from $0.55 to $0.75. What was the percent of increase? If necessary, round your answer to the nearest tenth of a percent.

Answers

Answer:

14

Step-by-step explanation:

add 4+10

family has a square driveway with an area of 210.25 m exponent 2. Find the perimeter of the driveway. Round your answer to the nearest foot. there are approximately 3.3 ft in 1 meter.

Answers

Answer:

191 ft.

Step-by-step explanation:

From the question given above, the following data were obtained:

Area (A) of square = 210.25 m²

Perimeter (P) =?

Next, we shall determine the length of each side of the drive way. This can be obtained as follow:

Area (A) of square = 210.25 m²

Length (L) =?

Area of a square is given by:

A = L²

210.25 = L²

Take the square root of both side

L = √210.25

L = 14.5 m

Thus, the length of each side of the drive way 14.5 m

Next, we shall determine the perimeter of the drive way. This can be obtained as follow:

Length (L) = 14.5 m

Perimeter (P) of square =?

Perimeter of a square is given by:

P = 4L

P = 4 × 14.5

P = 58 m

Finally, we shall convert 58 m to foot. This can be obtained as follow:

1 m = 3.3 ft

Therefore,

58 m = 58 m × 3.3 ft / 1 m

58 m = 191.4 ft

58 m = 191 ft

Thus, 58 m is equivalent to 191 ft.

Therefore, the perimeter of the drive way is 191 ft.

Find x.
20 cm
12 cm
Х
X =
cm

Answers

use pythagorean therom, so A^2 would be 12 since it’s the same lengths the square sides, and C^2 is 20. X= 16

Identify which of the following questions
are answerable using a statistical process.
a. What is a typical size of a Filipino
family?
b. How many hours in a day?
c. How old is the oldest man residing in
the Philippines?
d. Is planet Mars bigger than planet Earth?
e. What is the average wage rate in the
country?​

Answers

Answer:

a and e I believe

Step-by-step explanation:

this is because to answer those questions you need to survey multiple different people, you'd need more than just an answer if you were to find the average of something. For the other questions they're very direct and only have one answer. Therefore you wouldnt need a statistical process for the other questions and only for a and e.

The questions that are answerable using a statistical process include:

a. What is a typical size of a Filipino family?e. What is the average wage rate in the country?

A statistical process simply means a method of quality control that uses statistical methods in order to get information.

In this case, the questions that are answerable using a statistical process include what is a typical size of a Filipino family and what is the average wage rate in the country?

Learn more about statistics on:

https://brainly.com/question/15525560

Without solving, NO SOLUTION describes which equation?
A) 6a = 9a
B) 5x = 28
C) y = y + 1
D) y + 5 = 12

Answers

Answer:

The equation 'y = y + 1' represents NO SOLUTION.

Hence, option 'C' is true.

Step-by-step explanation:

a)

6a = 9a

subtract 9a from both sides

6a - 9a = 9a - 9a

-3a = 0

divide both sides by -3

-3a / -3 = 0/-3

Simplify

a = 0

b)

5x = 28

divide both sides by 5

5x/5 = 28/5

x = 28/5

c)

y = y + 1

subtract y from both sides

y - y = y+1-y

0 = 1

These sides are not equal, so

NO SOLUTION!

d)

y + 5 = 12

subtract 5 from both sides

y + 5 - 5 = 12 - 5

y = 7

Conclusion:

Therefore, the equation 'y = y + 1' represents NO SOLUTION.

Hence, option 'C' is true.

Answer:

1: y=y+1

2: 6a = 9a

Step-by-step explanation:

Without solving, NO SOLUTION describes which equation?

Answer: y=y+1

For which equation is zero a reasonable solution?

Answer: 6a = 9a

Please help with this thanks

Answers

Answer:

4/9 = 20/45

Step-by-step explanation:

divided the numerator of the whole fraction by the fraction missing a number

(in this case, 20 ÷ 4 = 5)

since the numerator and denominator have to be divided by the same number to make an equivalent fraction, you would divide 45 by 5 and would get 9

hope this helped

John ate 1/3 of a pizza, then ate another 1/2 of a pizza. What fraction of a pizza did Jon eat all together?

Answers

Answer:

He ate 1/6 of the pizza all together

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