Select the best possible first step to solving the system by first eliminating the x variable.

3x + 5y = 1
2x + 4y = −4

Answers

Answer 1
2x + 4y = -4

2x = -4 - 4y

x = -2-2y

(3x+5y=1) ----> (1)

3(-2-2y) + 5y = 1

-6 -6y + 5y = 1

-6 -y = 1

-y = 1 + 6

-y = 7

y = -7


2x + 4y = -4

2x + 4(-7) = -4

2x -28 = -4

2x = 24

x = 12

(x,y) = (12,-7)

Related Questions

Solve the system by graphing.

y=2x+4
y=-x+1

Answers

Answer:

Step-by-step explanation:

How many quarts are in 10 cups​

Answers

Answer:

There's 2.5

Step-by-step explanation:

4 cups is equal to 1 quart

So that means 8 cups is equal to 2 quarts

If we add 2 more cups then we would add 0.5 more quarts.

This means that 10 cups is 2.5 quarts.

Answer:

2.5 quarts

Step-by-step explanation:

since there are 0.25 quarts in one cup. you have to multiply 2.5 by 10. hope this helps*

Hello, look at the picture I established at the bottom I will be giving you thanks, 5 stars, and brain least, Thank you. Have a nice afternoon!

Answers

Answer:

I think B 10 diamond and 12 circles

Step-by-step explanation:

f(x) = -x² + x + 14
Find f (2)

Answers

Answer:

Step-by-step explanation:

f(2) = -2^2 + 2 + 14 = -4 + 2 + 14 = 12

Answer:

f(2) = 20

Step-by-step explanation:

f(x) = -x^2 + x + 14

f(2) = (2)^2 + (2) + 14

f(2) = 4 + 2 + 14

f(2) = 20

A paperweight in the shape of a rectangular prism is shown: A right rectangular prism is shown with length 10 cm, width 4 cm, and height 4 cm. If a cross section of the paperweight is cut diagonal to the base, which shape describes the cross section?

Answers

Answer:

Square

Step-by-step explanation:

CHECK THE ATTACHMENT FOR THE FIQURE OF THE QUESTION

✓We were given the dimension of the rectangular prism as 10cm × 4cm × 4cm,

✓The cross section of the paperweight can be cut into half to it's base. Then the new dimension will be 4cm × 4cm which is a quadrilateral.

✓ Then width= 4cm, and height=4 cm are of the same values, hence the shape it forms is a SQUARE. and also the their angles is 90° each.

quick help pls 26 points ​

Answers

Answer: hi, i can’t see the photo

Step-by-step explanation:

Answer:

b [tex]1\frac{1}{2}[/tex]

Step-by-step explanation:

150% = 1.5

If you say this allowed you would say 1 and one-half. So if you would write it it would be [tex]1\frac{1}{2}[/tex].

Hope this helps.

May I please have brainliest? :)

Solve the system of polynomial functions given
h(x) = x^4 + 1
g(x) = x^3

Answers

Answer:

a)h=x^3 b)g=x^2

Step-by-step explanation:

I will mark you as the brainiest if you get this correct Thx so much xxx

Answers

Answer:

the answer is 50/9

other forms

5 5/9

Answer:

5 5/9

Step-by-step explanation:

8+7*6

----------

3*3

8+42

-----------

9

50

----------

9

   5

5  -

   9

HELP FAST! WILL GIVE BRANLIEST

Answers

Answer:

70 degrees

Step-by-step explanation:

uvt = 60 degrees bc 180-120 =60

60+ 50 = 110

180-110 degrees = 70

To Be Honest I Dont Know

I'm just here for the points :P

heheheehe

if a loan is taken out for $991 at 3% and cost 267.57 dollars how long was the loan for

Answers

Answer:

9 years.

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3%/100 = 0.03 per year,

then, solving our equation

t = 267.57 / ( 991 × 0.03 ) = 9

t = 9 years

The time required to

accumulate simple interest of $ 267.57

from a principal of $ 991.00

at an interest rate of 3% per year

is 9 years.

Which does NOT represent the interior angle measures of a triangle?
O A. 5°, 75°. 100°
B. 10°,80°, 90°
OC. 20°, 60°, 100
O D. 45°, 45°, 45.
ос
E 50°, 509,80"

Answers

Answer:A

Step-by-step explanation:

Interior angles of a triangle ALWAYS have to be equal to 180

The sum of A is 180, however, those angles wont work because they have to be more close to eachother for it to be possible

The Triangle Inequality Theorem states the longest side must be shorter than the sum of the other 2 sides

E since the sum of interior angles for a triangle is equal to 180 degrees.

20+ points and brainliest in exchange for a couple of minutes of your time.

Answers

Answer:

Question 10: 25 Question 9: 60

Step-by-step explanation:

Angles share a line. 180-105=75

75/3=25

----------

Is the line at the bottom of question 3 the right side or left?

Please help with this one i will glady appreciate it ASAP :)

Answers

Answer:

d. both b and c are not functions, and a is just a chart, not a function.

Adam has 3 coins in his pocket and they are all different from each other. Ben has 3 coins in his pocket and they are all the same as each other. Adam has half as much money as Ben.
What are the coins they each have?

Answers

Answer:

The possible coins are:

P = penny = $0.01

N = nickel = $0.05

D = dime = $0.10

Q = quarter = $0.25

H = half dollar = $0.50

We know that Adam has 3 coins in his pocket, and all of them are different, then the money that Adam has can be represented with (A + B + C)

Behn has 3 coins, and all of them are the same, then if his coin has a value X, he has a total of 3*X

We know that Adam has half as much money as Ben, this can be written as:

(A + B + C) = 3*X/2

The easier way to solve this, is to play with different values of X, and see if we can find the values of A, B and C.

For example, if X = $0.10

then:

(A + B + C) = $0.10*(3/2) = $0.15

We can find 3 different value of coins for this equation? No, we cant, so X = $0.10 is also discarded.

if x = $0.50 then:

(A + B + C) = (3/2)*$0.50 = $0.75

Here we could have:

A = $0.50

B = $0.25

then: A + B = $0.75

But we still have the coin C.

If we take X = $0.25 then:

(A + B + C) = (3/2)*$0.25 = $0.375

We could round the right part to $0.40

then the coins in the left part would be:

A = $0.25

B = $0.10

C = $0.05

A + B + C =  $0.25 + $0.10 +  $0.05 = $0.40

This is a strech, but is the only thing we can make with the given problem.

Teresa has made 124 bags of treats. Each person was able to take 2 bags home. If there were 40 people, how many extra bags were left?

Answers

Answer:

31

Step-by-step explanation:

Answer:

the answer to your question would be 44

A triangle has one side measuring 5 feet and two sides measuring 7 feet. What kind of
triangle is it?
equilateral
isosceles but not equilateral
scalene

Answers

Answer:

isoceles but not equilateral

Step-by-step explanation:

it has two sides that are the same length, but not all three sides are the same length

An equilateral triangle is therefore a special case of an isosceles triangle having not just two, but all three sides equal

Plz help me :(:(:(:(:(:(:(:(::(((::(:(:(.(.(

Answers

Answer:

Look below!

Step-by-step explanation:

Angle A = 180-47 = 133

Angle B = 180-32-Angle A = 180-32-47 = 101

Angle D = 90-32 = 58

Angle C = 180-47-58 = 75

Hope I helped!

Answer:

A=133 ,B=15, C=75  D= 58

Step-by-step explanation:

Angle 32, d, and right angle add up to 180. So 180=32+90+x. Then x = 58 (D). The all 3 angles in the triangle add up too 180 so 180=47+58+x. x=75 (C). The 47 and a equal to 180 degrees. 180-47=133. The 133+32+x=180. x=15 (B).

Help plz i'll mark brainliest

Answers

Answer:

C

Step-by-step explanation:

Helpppp.....................................................

Answers

Answer:

6 and 8 are yes

Step-by-step explanation:

-4 and -6 are no

Answer:

sorry for this answer

Step-by-step explanation:

Do you have PC ?

what is the solution of the equation y=7x-2

Answers

Answer:

1/7y and 2/7

Step-by-step explanation:

This is anyone who wants easy points. What comes after B in the alphabet. Just tryna help someone

Answers

Answer:

C

Step-by-step explanation:

C is the 3rd letter in the alphabet

name each of the shapes below​

Answers

1Wht2

2The3

3Frick4

4Is5

5that6

The name of the shape in the figure is a hexagon.

What are polygons?

A polygon is often a plane figure in geometry that is enclosed by a closed chain made up of a finite number of straight-line segments that end in a loop. The spots where two of these segments meet are referred to as the polygon's vertices (plural: vertices) or corners. These segments are known as its edges or sides.

Given a shape,

the shape is a polygon,

to name a polygon first count the number of sides of the figure,

as we count there are 6 sides for the shape,

There are some specific names for the shapes according to their number of sides, like

Number of Sides Name          

3                      Triangle                    

4                 Quadrilateral

5                    Pentagon

6                     Hexagon

The name for the shape is Hexagon.

Hence the name of the figure is Hexagon.

Learn more about polygons;

https://brainly.com/question/24464711

#SPJ2

Someone pleaseee help me on this :( what is the slope of the line that contains these points.

Answers

Answer:

6/1

Step-by-step explanation:

the reason is because the x is increasing by 1 which is the denominator, and the y is also increasing by 6 which is the numerator. if you were to imagine those lines on a graph you would get a straight line and use rise over run to see that the slop is in fact 6/1

Here I hope this helps the image also gives an explanation on how to do it!

£16.80 in the ratio 2:1

Answers

Answer:

1u--> 5.60

2u--> 11.20

Step-by-step explanation:

3u--> 16.80

1u--> 5.60

2u--> 11.20

Answer:£11.20 : £5.60

Step-by-step explanation:

£16.80 in the ratio 2 : 1

add both sides of the ratio together to get 3

now divide £16.80 by 3 to get £5.60

now put that £5.60 into

                                         2 : 1                            £5.60 x 2 : £5.60 x 1                                   £11.20 : £5.60

Please help me asap!!!!!!! Please

Answers

Answer:

the cube is  bc 6 times 5 is 30 and the triangle is 2 because its the same length as the height

Step-by-step explanation:

Find the value of x. Then classify the triangle by its angles.

Answers

x= 15° and it is and acute triangle

William’s team won 16 games and lost 4 games. Tracey’s team won 15 games and lost 5 games. Whose team had the greater ratio of wins/losses?

Answers

Answer: William's is 16:4 and Tracey's are 15:5

Step-by-step explanation:

Which is greater 0.9 or 0.875 ?

Answers

I’m pretty sure it’s 9.0

35
53"
X
Find the value of x. Round your answer to the nearest tenth.

Answers

Answer:

x = 26.4

Step-by-step explanation:

Here, we want to get the value of x

To get this, we are to use the appropriate trigonometric ratio

From the question, we have the opposite and the adjacent

The trigonometric ratio to use in this case is the tangent

Mathematically;

Tan 53 = 35/x

x = 35/tan 53

x = 26.37

which is 26.4

PLZ HELPPPPP!!!It is due soon if someone could help that would be greattt!

Answers

Answer:

1. true

2. False

3. False

4. True

Step-by-step explanation:

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