Solve the system of equations by elimination
3x+4y=9
-6x-8y=-18

A. (5,-1)
B. (5,1)
C. Infinite number of solutions
D. (1,5)

Answers

Answer 1
C. Infinite numbeer of solutions

Related Questions

Rachel is trying to find the length of the lake shown on the diagram. She knows that if the two triangles are similar, she can use a proportion to solve for the length. How can Rachel justify that the triangles are similar? What is the length of the lake? A) Corresponding sides of the two triangles have the ratio of 4:1, which proves SAS similarity.The length of the lake is 212 m. B) Corresponding sides of the two triangles have the ratio of 4:1, which proves SSS similarity. The length of the lake is 132 m.
C) Corresponding sides of the two triangles have the ratio of 3:1, which proves SSS similarity. The length of the lake is 159 m. D)
Corresponding sides of the two triangles have the ratio of 4:1, which proves AAS similarity. The length of the lake is 240 m.

Answers

Answer: B) Corresponding sides of the two triangles have the ratio of 4:1, which proves SSS similarity. The length of the lake is 132m.

Step-by-step explanation: Similar Triangles are triangles with corresponding sides proportional to each other.

One way to determine if two triangles are similar is a theorem called Side-Side-Side Similarity Theorem or SSS similarity and it states that two triangles are similar if corresponding angles are equal and corresponding sides are proportional.

The triangles below are similar and they obey this theorem because we observe that the angles are the same and the corresponding sides are proportional:

[tex]\frac{big}{small}=\frac{212}{53}=\frac{60}{15}=4[/tex]

So, the ratio of bigger triangle and smaller triangle is 4:1.

With that ratio and suppose length is represented as L:

[tex]\frac{L}{33} =4[/tex]

L = 132

The length of the lake is 132m.

Thus, the answer for this question is

1) The similarity of the triangles is proved by SSS similarty;

2) Ratio of proportion is 4:1;

3) Length of the lake is 132m;

Alex has 48 stickers this is 6 times the number of stickers max has how many stickers does max have

Answers

Answer:

8

Step-by-step explanation:

Answer\

Max has 8 because 48 divided by 6 is 8

Step-by-step explanation:

PLEASE HELP. I need the answer ASAP.

Answers

Answer:

Its D

Step-by-step explanation:

D that’s the answer

Help now playing 10 point

Answers

Answer:

greatest sum is: 11 1/4 plus 8

greatest difference: is 11 1/4 plus -20.8

greatest product is: 8 times 11 1/4

greatest quotient is: 11 1/4 divided by 3.75

I am so stressed can someone please help me

It’s 53 points

Answers

Answer:

(3,1)

Step-by-step explanation:

. A fence encloses a triangular field. There is
a vertical wooden fence post at each corner
(vertex) of the field, and vertical
Posts
all
along the fence, placed 5 feet apart. If the
sides of the field measure 20 feet by 35 feet
by 25 feet, how many posts are there
altogether?

Answers

Answer:

16 posts

Step-by-step explanation:

Sides are:

20 ft, 25 ft and 35 ft

There are following number of posts on each of the sides:

20 ft side ⇒ 20/5 = 425 ft side ⇒ 25/5 = 535 ft side ⇒ 35/5 = 7

Total number:

4 + 5 + 7 = 16 posts

m2A = 2x
MLB = (3x - 10°
m2C = (110 - x)
help me plzzz

Answers

Answer:

X - B = -2

Step-by-step explanation:

You’re welcome

Need help please! Will give brainleist

Answers

Answer:

D is 16 degrees and C is supposed to have 2 angles so  C is half of 85 so 42.5 degrees.

Step-by-step explanation:

Is the square root of 144, 12?

Answers

Answer:

Yes, square root of 144 is 12

Step-by-step explanation:

12 times 12 is a perfect square and it is 144.

Answer:

yes it is

Step-by-step explanation:

What is the slope intercept form for (2,0)(4,6)

Answers

Answer:

I think its y=3x+6 but if im wrong sorry

A bank received a check for two thousand, six hundred nine dollars and seventy-five cents. How is this number written in expanded notation.

Answers

Answer:

Step-by-step explanation:

2,000 600 9 0.7 0.05

Write the slope intercept form equation of the line when m =-1 and b =-2 (write your answer with no spaces and any fraction with “/“)

Answers

Answer:

y = -x - 2

Step-by-step explanation:

y = mx + b

Which biconditional is false?
F A person is eligible to attend the
club meetings if and only if that
person is a member of the club.
G A person can practice medicine in
the United States if and only if that
person has a valid medical license.
H A person can legally drive a car if
and only if the person holds a valid
driver's license.
J A student participates on the
football tearn if and only if the
student maintains at least a 3
average

Answers

Choice G.

Out of sense, A and C are correct. Choice D seems more logical. For students studying medicine, that doesn’t mean they need a medical license.

Hope this helps! And mark this “brainliest!”

which shape has sides that are straight and connected?

Answers

Answer:

The first shape

Step-by-step explanation:

should be the top left one

ENJOY
OLMOST MERRY CRISLER

Answers

Almost Merry Christmas :)

9 cm. 12 cm. 15 cm
Is this a right triangle or not a right triangle

Answers

Answer:

It is a right triangle.

Step-by-step explanation:

bro isnt that a scalene triangle

Pls help 2 and 3!!!!!!!!!

Answers

Answer:

2)

d. -1 1/2

3)

c. 21 1/2

Step-by-step explanation:

PLEASE HELP ME STATTTTTTTTT

A real estate agent has $61 to spend on newspaper ads. Each ad costs $7. After buying as many ads as she can afford, how much money will the real estate agent have left over?

Answers

Answer:

8.714285    repeated

Step-by-step explanation:

Answer:

$5

Step-by-step explanation:

The real estate agent can buy 8 ads for a total of $56. Next you do $61 minus $56 which equals $5. If this answer helped you please consider giving it brainliest.

- •Trix•

( Yes I know my -•Trix• is not my user but its what I would change it to if I could but I can't, please address me as Trix while commenting or talking to me here.)

Complete the sentence to explain how to use mental math to express 12/25 as a percent.
Multiply the numerator and the denominator by______ to get ---------
100
which is the same as ___%

Answers

Answer:

the first one is 4 i think and the last one is 48 percent. im not sure if the dotted line is a underline tho

Step-by-step explanation:

:))

Multiply the numerator and the denominator by 100 to get 48/100

which is the same as 48% .

What is percentage?

A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word per cent means per 100. It is represented by the symbol “%”.

Given,

Fraction = 12/25

To convert into percentage

divide the number by 100 and multiply by 100.

= ((12/25)×100)/100

= 12 × 100/25×100

= 48/100

= 48%

Hence, 48% is the expression of 12/25 as percent gotten by multiplying and dividing with 100.

Learn more about percentage here:

https://brainly.com/question/14979505

#SPJ3

0 Help please!
If you know geometry please help!

Answers

Answer:

D

Step-by-step explanation:

It's an Icoseles triangle do the two bottom angles are equal. 50+ 50 = 100. All triangle angles add up to 180 so 180 - 100 = 80

Answer:

Option D - 80

Step-by-step explanation:

The triangle is an isosceles triangle, which means that two angles and sides are the same. That means that other side is also 50°. All the angles in a triangle add up to 180°. Since we know two of the angles, we should know what the angle x is. We can write it as 50 °+ 50° + x = 180°. You can add 50° and 50° to get 100°. Now you have 100° + x = 180°. Subtract 100° from both sides to get x = 80°.

Hope this helps! :)

Identify which of these types of sampling is​ used: random,​ systematic, convenience,​ stratified, or cluster. To determine her stress level​, Charlotte divides up her day into three​ parts: morning,​ afternoon, and evening. She then measures her stress level at 2 randomly selected times during each part of the day.

Answers

Answer:

stratified sampling

Step-by-step explanation:

Note, in the stratified sampling sample method, the population is divided into smaller strata or smaller groups, and then a sample is selected randomly.

In this scenario, the population is a day (24 hours), so dividing the population (day) into three parts; morning, afternoon, and evening represents the various strata. Hence, since Charlotte, the researcher measures her stress level at 2 randomly selected times during each part of the day, she would be using the stratified sampling method.

Today Alice is five times as old as Todd in 10 years she will only be 3 times as old what is there age now

Answers

Answer:

30

Step-by-step explanation:

answer helppppp plsss i’m on quizzzz

Answers

i would love to help but i am in 5th grade

Here I will be giving a Brainiest to a good answer :D

Answers

Answer:

A. F

B. D

C. C

D. E

E. G

F. G

G. D

Step-by-step explanation:

Answer: A. 9/4

              C. -1.75

              D. 1.75

              E -2      

              F-1

              -2 1/2  

Step-by-step explanation:

Pip can type 90 words a minute.
How many words can be typed in 10.5 minutes?

Answers

Answer:

the answer is 945

Step-by-step explanation:

simple math 90 x 10 = 900

.5 = 45

900 + 50 = 945

Answer:

945 minutes

Step-by-step explanation:

just multiply 90 by 10.5 buddy

y
44
3
2-
-3
-2
2
3
4
-3+
-4
V
What is the slope of the line?

Answers

Answer:

-1

Step-by-step explanation:

-1 is the slope of the line

Helppppppp ASAP plsss

Answers

If p = 2, insert the value of p.

2^3 = 2 x 2 x 2 = 4 x 2 = 8

so p^3 = 8

An adult ticket for hypnotist's show cost $15. A children's ticket for the hypnotist's show cost $9. The number of adult tickets sold 5 more times the number of children's ticket sold. A total of $1512 is taken in for ticket sales. How many of each type of ticket is sold.
1. 21 adult tickets and 110 children's tickets
2. 110 adult tickets and 22 children's tickets
3. 10 adult tickets and 90 children's tickets
4. 10 adult tickets and 18 children's tickets

Answers

Answer= 1
because number 2 and 4 are under $1512 and 3 is over

Answer:

The answer is B, or the second one.

90 Adult tickets and 18 Children's tickets

Step-by-step explanation:

(90 x 15) + (18 x 9)

you had $20 at the beginning of the week you worked 10 hours during the week having $70 how much do you earn each hour

Answers

Answer:

You need more deatils, did you work 24 hours per day or 9 hours. my question is how many hours a day did you work?

what does nonlinear mean?

Answers

It’s not linear




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

Answer:

Not denoting, involving, or arranged in a straight line.

Step-by-step explanation:

I looked it uo on google

im not SmArT

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