2x – 3y = -5
4x - 4y = -4
Is (2.3) a solution of the system?

Answers

Answer 1

Answer:

Yes.

Step-by-step explanation:

We'll substitute in the values in both equations.

[tex]2x-3y=-5[/tex]        [tex]4x-4y=-4[/tex]

[tex]2(2)-3(3)=-5[/tex]   [tex]4(2)-4(3)=-4[/tex]

Distribute.

[tex]4-9=-5[/tex]             [tex]8-12=-4[/tex]

Simplify.

[tex]-5=-5[/tex]                [tex]-4=-4[/tex]

Yes, it is a solution. You can plug the equations into Desmos to check.


Related Questions

Help here is an easy one

Answers

Answer:

x = 30°

Step-by-step explanation:

Given that,

∠A = x°

∠B = 2x°

∠C = 90°

We need to find the value of x.

We know that the sum of angles of a triangle is equal to 180°.

ATQ,

x° + 2x° + 90° = 180°

3x° = 180°-90°

3x° = 90°

x° = 30°

So, the value of x is 30°.

Answer:

3x+90=180

3x=90

x=30

Step-by-step explanation:

PLEASE HELP AND LEAVE A SMALL EXPLANATION

Answers

Answer:

A

Step-by-step explanation:

Because Alternative Exterior angle

Which distribution is most nearly appropriate to describe_______the number of fatalities in Texas in a given year due to poisonous snakebites.

Answers

Answer: Poisson distribution

Step-by-step explanation:

The Poisson distribution simply measures the chance for an event occuring based on a particular period of time. It is typically useful for finding the probability of events that have low probabilities of occuring.

Therefore, the distribution that will be ideal in knowing the number of fatalities in Texas in a given year due to poisonous snakebites is the poisson distribution.

Please help me! Im really confused!

Answers

Answer:

4) 8:1

Step-by-step explanation:

well on the first perfect point there are 8 cups of raspberry juice and 1 cup of lemon-lime soda and it is comparing them in that order so since 1 is the unit it would be 8:1

Answer:

c is correct answer is yes then please

Solve the equation. w/5 =3 w=​

Answers

Answer:

15

Step-by-step explanation:

[tex]\frac{w}{5}[/tex] = [tex]3[/tex] (multiply both sides by 5)

w= 15

Answer:

w= 15

Step-by-step explanation:

1. Multiply all terms by the same value to eliminate fraction denominators

2. Then simplify

What is a factor that is less than 1?

Answers

Answer:

none

Step-by-step explanation:

Please help (8th grade math)

Answers

Answer:

-1

Step-by-step explanation:

since the line increases by 1 along the x axis and goes down by 1 on the y axis, you can do rise over run, which gives you:

1 / -1 , which ultimately gives you -1.

Lisa bought bottles of soda for $2.50 each and a large pizza for $17. The total cost was $27. How many bottles of soda did Lisa buy?

A.
4

B.
3

C.
10

D.
6

Answers

Answer:

a

Step-by-step explanation:

27-17= 10$ 2.5 goes into 10 4 times

Write a slope-intercept equation of the line with a slope of — that passes through the point (6, 10).
O A. y = 6x + 10
O B. y=-x +38 3
O C. y=-x +14
O d.y= -x + 6

Answers

Answer:

y= -x + 6

please mark as brainliest

Choose the best estimate for the division problem below. 7.9 0.8 O A. 10 B. 8 O C. 15​

Answers

Answer:

C. 15

Step-by-step explanation:

7.9

+8=15

thats why the answer is 15

Two linear functions are shown below which function has the greater rate of change? Use the drop-down menus to show your answer
1. A or B
2. A or B
3. A or B

Answers

I think it would be 2

Answer:

It’s A

Step-by-step explanation:

Because it’s not a curve but a straight line

I need help with this question​

Answers

Answer:

f(g(4)) = 5

Step-by-step explanation:

Recall that to find f(g(4)), we need to first find g(4) which we find via the given table:

g(4) = 0

and then use the graph to find f(0) = 5

Then f(g(4)) = 5

25 POINTS FOR ANYONE THAT CAN HELP ME!! Rewrite 16r^2s^2 as a power of a product.

Answers

Answer:

256rs

Step-by-step explanation:

16r^2=256r

s^2=s

*256r)(s)=256rs

8x-5y=37 x=2y+6 substitution

Answers

Answer:

Solve for the first variable in one of the equations, then sub the result into the other equation.

point form- (4,-1)

equation form- x=4, y=-1

Step-by-step explanation:

I HIGHLY recommend math-way to help you with problems like this :)

hope this helps!

Kendra just bought a new house and needs to buy new sod for her backyard. If the dimensions of her yard are 24.6 feet by 14.8 feet , what is the area of her yard

Answers

Answer:

364.08 Feet

Step-by-step explanation:

Answer:

Step-by-step explanation:

the yard will have the area is A= L*W

A=24.6*14.8=364.08 ft^2

Expand the logarithm. Simplify, if possible.
log7(49^w)

Answers

Step-by-step explanation:

Let x = log7(49^w).

We have 7^x = 49^w.

=> 7^x = (7^2)^w

=> 7^x = 7^2w.

=> x = 2w.

Therefore log7(49^w) = 2w.

Trignometery: Sin Cos and Tan

Answers

Answer:

766m (3 s.f.)

Step-by-step explanation:

Please see the attached picture for the full solution.

Find the resultant of two displacement vectors A and B shown below. The magnitude of A is 20m, and the magnitude of B is 30m

Components A: ____ ____
Components B: ____ ____

Answers

Well 6,8 and 5,8 the answer

The circumference of a circle that has a radius of 70 feet is most nearly

A. 220 feet.

B. 440 feet.

C. 660 feet.

D. 690 feet.​

Answers

Answer:

B 440 feet

Step-by-step explanation:

C = 2(3.14)r

= 2(3.14)70 feet

= 6.28(70 feet)

= 439.6

439.6 is approximate to 440 feet

A committee is to consist of two members. If there are seven people
available to serve on the committee, how many different committees can
be formed

Answers

Answer:

2

Step-by-step explanation:

Common Sense

The number of different ways committees can be formed will be 21.

What are permutation and combination?

A permutation is an act of arranging items or elements in the correct order. Combinations are a way of selecting items or pieces from a group of objects or sets when the order of the components is immaterial.

A committee is to consist of two members.

If there are seven people available to serve on the committee.

If two people are selected from the group of seven people.

Then the number of different ways committees can be formed will be

⇒ ⁷C₂

⇒ 7! / [(7 – 2)! x 2!]

⇒ 7! / [5! x 2!]

⇒ 7 x 6 x 5! / [5! x 2 x 1]

⇒ 7 x 6 / 2

⇒ 7 x 3

⇒ 21

Thus, the number of different ways committees can be formed will be 21.

More about the permutation and the combination link is given below.

https://brainly.com/question/11732255

#SPJ2

Caroline is saving up to buy a new video game. She already has $45 and can save an additional $9 per week using money from her after school job. How much total money would Caroline have after 9 weeks of saving? Also, write an expression that represents the amount of money Caroline would have saved in w weeks

Answers

Answer:

Step-by-step explanation:

9*9=81

81+45

Answer:

9=9=81

Step-by-step explanation:

34 1/3% of animals at the shelter are dogs. About what fraction of the animals are dogs?

Answers

Answer:

Step-by-step explanation:

34%=34100

=0.34

=0.341×100100

=34/100

=17/50

3r + 7 = -8 what does r =

Answers

Answer: R = -5

Step-by-step explanation: 3r + 7= -8 is turned into 3(-5) + 7= 8.                                             -15 + 7=8

You work for a landscaping company and will be installing a fence around a customer’s yard. The yard is rectangular and is 45 feet wide by 80 feet long. About how many feet of fencing should you buy to enclose the entire yard?

Answers

Answer:

250ft

Step-by-step explanation:

45ft + 45ft of fencing for the two short ends. 80ft +80ft for the two long sides

45ft+45ft=90ft

80ft+80ft=160ft

90ft+160ft=250ft

Which brand would Cala need more of to fertilize her 450-foot row of vegetables

Answers

Answer:

What do,you mean

Step-by-step explanation:

express the surface area A of a cube in terms of its volume V

Answers

The surface area of a cube of side-length a is S = 6a" (six sides each of area a”) and the volume is V = a*. Thus, a=v1/3, so S = 6V2/3.
S= 6a^2
V=a^3
Then a=v^1/3
So surface area=6(v)^2/3

I will give a brainlist if someone could answer this problem with a explanation:)

Answers

Answer:

It would be ASA

Step-by-step explanation:

Those two triangles are congregant so it would be A. ASA

HELP ASAPPPP I WILL GIVE BRAINLIEST

Answers

Answer:

It would be B

Step-by-step explanation:

If she is using the algebra tiles and added the 4 to both sides instead of subtracting, it would give you 2x=14 which then you would divide by 2 and get 7. Making the answer B

ben sells greeting cards for $5 each in his online store. He also charges $1.99 for shipping. The total cost, y, of an order from Bens store is found using the equation y = 5x+ 1.99, where x is the number of cards bought. Which quantity represents the dependent variable in this problem situation?

Answers

Answer: How many greeting cards he sells

Step-by-step explanation:

The cards are 5 dollars each. 1.99 for shipping is all the same. The only thing that changes is the amount that he sells. So the amount of Greeting cards sold is the dependent variable.

2) Addisyn has a 12-sided die. If she rolls
the die 250 times, how many times can
Addisyn predict she will roll a 9?
A. about 9 times
B. about 27 times
C. about 21 times
D. about 108 times

Answers

The answer to your question is about 9 times so ya that your answer about 27 times
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