What is the result of adding these two equations? -2x+y=0 -7x+3y=2

Answers

Answer 1

Answer:

-9x + 4y = 2 is the sum of the equations


Related Questions

Please, I need help with this

Addison and Bert are in the same reading group at school. The book they're reading right now is 256 pages long. Addison has read 102 pages so far and decides to read 16 pages every day until she finishes the book. Bert has read 142 pages, and he plans to read 11 pages every day. How many days will it be until Addison and Bert have each read the same number of pages in total? How many pages will they each have read?

Answers

Answer: The answer in this photo thanks for a little quiz

The number of day it will be until Addison and Bert each have  read the same number of pages in total is 8 days.

What is an equation?

In mathematics, an equation is a statement of equality between two expressions, indicated by the equals sign (=). Solutions to equations are the values for unknowns which, when substituted into the expression, make it true.

Given that, the book they're reading right now is 256 pages long.

Let the number of days be x.

Addison has read 102 pages so far and decides to read 16 pages every day until she finishes the book.

102+16x -------(i)

Bert has read 142 pages, and he plans to read 11 pages every day.

142+11x -------(ii)

Addison and Bert have each read the same number of pages in total.

So, (i)=(ii)

102+16x=142+11x

16x-11x=142-102

5x=40

x=8

Hence, the number of day it will be until Addison and Bert each have  read the same number of pages in total is 8 days.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ3

hilda wants to makeva circular tablecloth for thew kids table at thanksgiving dinner. if the tablecloth must have a diameter of at least 5,5 feet, approximately how many square feet of material will hilda use?

Answers

Answer:

we get

Diameter of cloth,

= 36 inches + 6 inches + 6 inches

= 48 inches

Hence the rectangular shaped fabric should have atleast a length of 48 inches to cut out a perfect circle.

This is urgent I needed help.

When 3 times a number is increased by 4,
the answer is the same as when 12is
decreased by the number. Find the number.

Answers

Answer:

12

Step-by-step explanation:

Hope this helps! :D

Answer:The number, or

12 is the answer

Step-by-step explanation:3

x

+

4

=

5

x

20

3

x

+

4

3

x

+

20

=

5

x

20

3

x

+

20

24

=

2

x

24

2

=

2

x

2

x

=

12

Bill bowled 3 games at a bowling alley and rented shoes, spending a total of $9.00. LeAnn bowled 5 games at the bowling alley and rented shoes,
spending a total of $14.00. How much does it cost to bowl a game?
A. $2.50
B. $2.80
C. $1.50
D. $3.00
Please help!!!

Answers

I need help with this one too

Answer:

3.00

Step-by-step explanation:

Answer with either A, B, C, D, E and if the answer is correct I will give u brainliest
The Mattress Depot paid $400 for a bed wholesale, then marked up the price to sell in the store. The retail price is 450% of the wholesale price. At the end of the season, the store will discount the retail price. Which statements are true? Select all that apply.

a. The retail price of the bed in stores is $1800.
b. If the store discounts the retail price of the bed by 30%, the discounted price is $540.
c. If the store discounts the retail price of the bed by 50%, it will make a profit of 125%.
d. The retail price of the bed is $1400 more than the wholesale price.
e. If the store discounts the retail price of the bed by 20%, it will not make a profit.

Answers

Answer:

400*4.5=1600+200=1800

1800-400=1400

d. The retail price of the bed is 1400 more that the wholesale price.


Monday, February 8
Jeff and Marcia own a llama farm.

On their farm, they have 240 llamas. Each llama they sell earns them a $325.00 profit.

If they were to sell 3/5 of their llamas, how much total profit would they make?

(Show your Work.)

A. $31,200.00
B. $46,800.00
C. $62,400.00
D. $78,000.00

Answers

Answer: B 46,800.00
Explanation :
If you were to take 240 llamas multiple by 3 and divide by 5 which will give you 144 and multiply it by 325.00 which is the profit they make the answer will be 46,800.00

Use distribute property and simplify
Help me please​

Answers

Answer:

104

155

180

Step-by-step explanation:

an easy way is to solve what is in the parenthesis then multiply by the outside number

but if you need to use the distributive property:

1. 4 x (20 - -6)

(4 x 20) - (4 x -6) = 80 - -24 = 80 + 24 = 104

2. -5 x (24 - -7)

(-5 x 24) - (-5 x -7) = -120 - 35 = 155

3. 12 x (-30 + 45)

(12 x -30) + (12 x 45) = -360 + 540 = 180

Step-by-step explanation:

must calculate the number in ( ) first before calculate the number in [ ]

- - > +

+ + > +

+ - > -

- + > -

Solving equations -3x + 7 = 28​

Answers

Answer:

x = - 7

Step-by-step explanation:

Given

- 3x + 7 = 28 ( subtract 7 from both sides )

- 3x = 21 ( divide both sides by - 3 )

x = - 7

Answer: x = −7

Step-by-step explanation:

Step 1: Subtract 7 from both sides.

Step 2: Divide both sides by -3.

Final Answer: x = −7

If I Helped, Please Mark Me As Brainliest, Have A Great Day :D

Write an equation in point-slope form of the line through the point (-1, 2) and with slope m= 2.

Answers

Answer: y-2=2(x+1)

Step-by-step explanation: You get the point slope formula and simply put in the information given

- 9 + x = 11 x =___ help

Answers

Answer:

-0.9

Step-by-step explanation:

Answer:

x=-9/10 or -0.9

Step-by-step explanation:

You have to isolate the variable by dividing each side by factors that don't contain the variable. Hope this helped! :)

Answer choices are
3/4.
2.
3.
4

Answers

Answer:

4

Step-by-step explanation:

You can determine the y-intercept by looking at the graph and see where the line intersects the y-axis at. Therefore, the y-intercept is 4

Answer:

I think maybe 3

Pleaseeee help answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

The answer to the question is 540°

Step-by-step explanation:

The reason to the answer is:-

There is a formula which is (n - 2) × 180

n is the number of sides the shape has, and there is 5 sides so we subtract 5 - 2 = 3

Therefore, 3 × 180 = 540°

I hope this answer helps!

Answer:

540°

General Formulas and Concepts:

Math

Counting

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Geometry

Sum of Angles: 180(n - 2)°

Step-by-step explanation:

Step 1: Define

We have a polygon with 5 sides (a pentagon)

n = 5

Step 2: Find Sum

Substitute in n [Sum of Angles]:                                                                    180(5 - 2)°(Parenthesis) Subtract:                                                                                   180(3)°Multiply:                                                                                                           540°

How is solving for the length different from solving for the length of the hypotenuse?

Answers

Memorize the side ratios of a 45-45-90 right triangle.
The ratio between the sides of this triangle is 1:1:Sqrt(2), which means that the length of the legs are equal, and the length of the hypotenuse is simply the leg length multiplied by the square root of two.

help, due tonight, asap, will give brainliest

Answers

Answer:

has one solution which is 2

Step-by-step explanation:

math work pls help :)​

Answers

Answer:

SAS (side-angle-side)

Step-by-step explanation:

In the given picture, it is shown that the triangles have two congruent sides, and one congruent angle between them. The congruent sides are shown by the lines on the sides. The congruent angle is shown by the box outlining the angle (technically a box outlining the angle demonstrates that the angle is a right angle, either way, it proves the congruency).

Calculate the value of the sample variance. Round your answer to one decimal place. 9_5,9_5,2,9_5

Answers

Answer:

[tex]s^2 = 0.01[/tex]

Step-by-step explanation:

Given

Values: 9/5, 9/5, 2, 9/5

Required

Calculate the sample variance

Sample variance is calculated using:

[tex]s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}[/tex]

First, we calculate the mean

[tex]\overline x = \frac{\sum x}{n}[/tex]

[tex]\overline x = \frac{9/5 + 9/5 + 2 + 9/5}{4}[/tex]

[tex]\overline x = \frac{7.4}{4}[/tex]

[tex]\overline x = 1.85[/tex]

[tex]s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}[/tex] becomes

[tex]s^2 = \frac{(9/5 - 1.85)^2+(9/5 - 1.85)^2+(2 - 1.85)^2+(9/5 - 1.85)^2}{4 - 1}[/tex]

[tex]s^2 = \frac{(-0.05)^2+(-0.05)^2+(0.15)^2+(-0.05)^2}{4 - 1}[/tex]

[tex]s^2 = \frac{0.0025+0.0025+0.0225+0.0025}{3}[/tex]

[tex]s^2 = \frac{0.03}{3}[/tex]

[tex]s^2 = 0.01[/tex]

Hence, the variance is 0.01

My uncle bought a second-hand truck for $25400 and spent $600 to repair it. What is the CP?

Answers

Answer:

buy a used better tuck with the 25400 inside of buying the truvk that is broke or thst you to repair

Step-by-step explanation:

jus buy the better truck.

A steep mountain is inclined 74 degree to the horizontal and rises 3400 ft above the surrounding plain. A cable car is to be installed from a point 970 ft from the base to the top of the mountain. Find the shortest length of cable needed.

Answers

Answer:

3917m

Step-by-step explanation:

We are given that

[tex]\theta=74^{\circ}[/tex]

[tex]h=3400 ft[/tex]

We have to find the shortest length of cable needed.

Let Base=x

We know that

[tex]tan\theta=\frac{Perpendicular\;side}{Base}[/tex]

Using the formula

[tex]tan74^{\circ}=\frac{3400}{x}[/tex]

[tex]x=\frac{3400}{tan74}=975m[/tex]

[tex]y=x+970=975+970=1945m[/tex]

Now, the length of cable needed

=[tex]\sqrt{(3400)^2+(1945)^2}[/tex]

=3917m

Hence, the shortest length of cable needed=3917m

I need help quickly!!!

You solve a system of two linear equations by substitution. Your work results in a third equation, which leads you to conclude that the system has infinitely many solutions. Which of the following could be the third equation?

The options are:
5=0
-4=-4
2y=14
3x+10=16

Answers

-4=-4.......................

BRAINLIEST FOR ANSWER PLEASE HURRY

Answers

Answer:

11.3

Step-by-step explanation:

Pythagorean theorem is a^2+b^2=c^2

8^2+8^2=128

the square root of 128 is 11.3137085

then you round to the nearest tenth and get 11.3

A fair charges an admission fee of 2 dollars for each person. Let a be the cost of admission (in dollars) for P people. Write an equation relating c to p.

Answers

Answer:

[tex]a = 2p[/tex]

Step-by-step explanation:

Given

[tex]Admission\ Fee = \$2[/tex] per person

Required

Represent as an equation

For 1 person, the admission fee is 2

For p people, the admission fee will be 2p.

Hence:

[tex]a = 2p[/tex]

a.
Clare wrote the inequality - 12x +100 225, where x represent the amount Kiran
takes out each month. What does - 12x represent?

Answers

Answer:

THe answer is a

Step-by-step explanation:

the answer is a

write points (-6,3) and (6, -7) in a) Identify the slope



b) Write the equation in slope-point form



c) Write the equation in slope-intercept form



d) Write the equation in the general form.

HELPPP PLEASE FAST, I REALLY NEED IT

Answers

The slope is -1.4
Slope intercept form- y= -1.4x+B
Slope point form- y-6= -1.4x (2-6)
General form- -1.4x+By + C= 0
Hope that helped sorry if wrong

10
14)
Which equation represents a proportional relationship?
1)
A)
3x
y =
4
3
B)
y =
C)
3x
y =
+ 1
D)
3
y =
+ 1
4x

Answers

Answer:

295275392

2864263924729

8639253925339

9739373027303

9283634828

293682537474(483

926338286328+

92632926282727

93739363825282

92362836273

9263935392628

9273926382639

926329638392

92639236926

92632863922

9273936

In four basketball games, Kevin averaged 15.5 points per game. How many total points did Kevin score in the four games?​

Answers

Answer:

3.875 points

Step-by-step explanation:

15.5/4=3.875

5+2(2x-3)+8x = -5x +2








5 -2(2x-3)+8x = -5x +2


show how you did it

Answers

Answer:

answer to top question:  x = 3/17

answer to bottom question:  x = -1

Step-by-step explanation:

distribute first

5 + 4x - 6 + 8x = -5x + 2

combine like terms

-1 + 12x = -5x + 2

12x = -5x + 3

17x = 3

x = 3/17

5 - 4x + 6 + 8x = -5x + 2

4x + 11 = -5x + 2

9x + 11 = 2

9x = -9

x = -1

Gabriela 30 in of ribbon to make bows each bow uses 5 in of ribbon how many ribbons dose Gabriela make

Answers

Answer:

Gabriela Can Make 6 Bows.

Step-by-step explanation:

30 ÷ 5 = 6

So Gabriela Has Enough Ribbon To Make 6 Bows.

I need to get write the following expression in simplest form:5n8n+5−5n.

Answers

Answer:

5([tex]n^{9}[/tex]-n+1)

Step-by-step explanation:

Find the length of side x in simplest radical form with a rational denominator

Answers

Answer:

2.45

Step-by-step explanation:

Change the picture

Answer:

[tex] x = \sqrt{6} [/tex]

Step-by-step explanation:

[tex] \cos \: 45 \degree = \frac{ \sqrt{3} }{x} \\ \\ \frac{1}{ \sqrt{2} } = \frac{ \sqrt{3} }{x} \\ \\ x = \sqrt{2} \times \sqrt{3} \\ \\ x = \sqrt{6} [/tex]

please help me i will give brainliest:/

Answers

Answer:

i think its b tell me if im wrong!

Answer:

D.

Step-by-step explanation:

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