x=2y-1 solve this equation
3x+y=11

Answers

Answer 1

Step-by-step explanation:

substitute y into x

3(2y-1)+y=11

6y-3+y=11

add like terms

6y+y-3-11=0

7y-14=0

look for a common factor

7(y-2)=0

y-2=0

therefore y=0 or y=2

find x

if x=2y-1

x=2(0)-1

x=-1

if x=2y-1

x=2(2)-1

x=3

therefore (-1;0) and (3;2)


Related Questions

Find area of circle
a)radius = 4cm
b)radius = 3m
c)radius =9m
d)radius =20cm
e)radius =12cm

Answers

A) 50.24
B) 28.26
C) 254.34
D) 1256
E) 452.16
♡ please mark brainliest

What is 2+3+5+10x64+7+57

Answers

714
Hope this helps :)

Answer:

714

Step-by-step explanation:

To solve this you have to use the BODMAS theory.

That means,

B ⇒ Brackets

O ⇒ Of

D ⇒ Divide

M ⇒ Multiplication

A ⇒ Addition

S ⇒ Subtraction

You have to solve the sum according to the above.

2 + 3 + 5 + 10 x 64 + 7 + 57

2 + 3 + 5 + 640 + 7 + 57

5 + 645 + 64

650 + 64

714

Let me know if you have any other questions. :-)

WILL GIVE BRAINLETS FOR THE CORRECT ANSWER OR FIRST CORRECT ANSWER PLSS HELP The length of a bridge is 110 m. The length of each of Robert's paces is 75 cm. What is the minimum number of full paces that it would take Robert to walk the full length of the bridge?

Answers

Answer:

Step-by-step explanation:

Length of the bridge = 190 m = 190*100 = 19000 cm    {100cm = 1m}

Length of each pace of Robert = 80 cm

Minimum number of full paces = 19000/80

=  237.5

= 238   {because full paces}

Can you guys help me?

Answers

Answer:

[tex]\sf{1) m<2 = 16°} \\

\sf{2) m<5 = 84°} \\

\sf{3) m<B = 79°}[/tex]

The bottom of a ladder must be placed 5 feet from a building. If the ladder touches the building 13.1 feet above the ground, find the length of the ladder to the nearest foot

Answers

Applying the Pythagorean theorem, the length of the ladder to the nearest foot is: 14 ft.

What is the Pythagorean Theorem?

The Pythagorean theorem states that if c is the hypotenuse of a right triangle, and a and b are the legs of the right triangle, then, c = √(a² + b²).

Thus, the ladder leaning on a building will form a right triangle, such that:

Hypotenuse = the length of the ladder = c

a = 5 ft

b = 13.1 ft

Therefore:

c = √(5² + 13.1²)

c = 14 ft

Therefore, applying the Pythagorean theorem, the length of the ladder to the nearest foot is: 14 ft.

Learn more about the Pythagorean theorem on:

https://brainly.com/question/22544679

a circle has a radius of 50 centimeters whats its area

Answers

What are your options? I did 3.14 times 50 to the 2nd power = 7850 so the answer is 7854 cm2

in 25 mintues, 300 customers entered the attraction. at this rate, how many customers would enter the attraction in 1 hour

Answers

Answer:

around 12,000

Step-by-step explanation:

Answer:

720

Step-by-step explanation:

60/25=2.4

2.4*300=720

can I have help with the problem in the picture pls ​

Answers

B


Pls mark me as beainlist

5. From 13 friends to 14 friends

Answers

Answer:

That would be 1

Step-by-step explanation:

To get 13 out of 14 you must add 1.

The product of 3 and the difference of 5 and a number

Answers

Answer:

3 * (5 - x)

Step-by-step explanation:

Using the keywords:

product of

difference of

and a number

The product of 3 and the difference of 5 and a number is (5 - x)×3.

What is distributive law ?

Distributive law comes handy when we have two or more than two numbers or variables inside brackets and the terms are separated by addition or subtraction and the whole bracket is multiplies to some other one or more than one variable or another bracket consisting same as stated we can multiply them with certain rule explained by an example

a(b+c) = ab + ac

(a+b)(c+d) = ac + ad + bc + bd

According to the given question

The product of 3 and the difference of 5 and a number product means multiplication difference means subtraction.

Assuming the number to be x.

∴The product of 3 and the difference of 5 and a number is

difference of 5 and a number is ( 5 - the number )

= (5 - x ) and their product with 3 which is

= (5 - x)×3

= 15 - 3x if we distribute.

Learn more about Distributive law here :

https://brainly.com/question/499160

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Hakim is saving money to buy a new bicycle. So far, he has saved $12. This amount is 8% of the amount he needs to buy the new bike. What is the cost of the bicycle?

Answers

Answer:

150 hope this helps

Ivan saved 9 dollars which is one third of the total cost. How much does the game cost?

Answers

Answer:

$27

Step-by-step explanation:

9 dollars = one third

3x9=27

hope this helps please thanks it and rate 5 stars

have a good day

Answer:

no tengo nada k decir ya te lo resolvieron

Step-by-step explanation:

Find the square root of 94249​

Answers

Answer:

307

Step-by-step explanation:


Charlie bought 2 pounds of pears for $0.76 per pound and 2 pounds of grapes for $1.40 per pound. How much
money in dollars and cents did Charlie pay for the pears and grapes?
Record your answer in the boxes below. Be sure to use the correct place value.
+/-
A

Answers

0.76 x 2 = 1.52
1.40 x 2 = 2.80
1.52 + 2.80= 4.32

Answer is 4 dollars and 32 cents

Please help!! I can’t figure out this question on my test (sorry for bad quality)

Answers

Answer:

x = 15

Step-by-step explanation:

Since WY = WZ, angle Y = angle Z = 2x

angle W = 90 degrees, so

90 + 3x + 3x = 180

6x = 180 - 90 = 90

x = 90/6 = 15

Answer:

the person above me is correct do the math

In a triangle ABC, the measure of angle B is 4 times the measure of angle A, and the measure of angle C is 17° less than 5 times the measure of angle A. Find the measure of the angles.​

Answers

Answer:

A: 19.7º  B: 78.8º  C: 81.5º

Step-by-step explanation:

The trouble with problems like this is usually just getting started.

Hint:  look at the descriptions of the angle measures and see if one of the angles is mentioned twice.  It's angle A.  Pick a variable for the measure of that angle, say  a.

Angle B:  "4 times the measure of angle A" becomes  4a

Angle C:  "17 less than 5 times the measure of angle A" becomes  5a - 17

Now use the fact that relates all three angles:  the sum of the measures of any triangle's angles is 180 degrees.

a + 4a + (5a - 17) = 180

Combine like terms.

10a - 17 = 180

Add 17.

10a = 197

Divide by 10.

a = 19.7 degrees

Try not to panic because the answer is not a whole number!

Plug this into the expressions for the other angles.

B:  4(19.7) = 78.8 degrees

C:  5(19.7) - 17 = 81.5 degrees

Check:  19.7 + 78.8 + 81.5 = 180

#1: Solve the triangle. ​

Answers

Answer:

D

Step-by-step explanation:

because i just took the test

Help pls ty it's very urgent

Answers

Answer:

do by interest formula

PTR/100

P=TR/100*50

What is the area of the triangle whose vertical are (-4,0), (-10,0) and (-7,-6)?

Answers

Step-by-step explanation:

from the point -10 to -4 thre is a difference of 6 uints . Base 6

from the x-axis to furthest point,

there is a difference of 6 units. Height 6

Russ has two jars of glue. One jar is 1/5 full.The other is 2/5 full. Use the fraction to write an equation to find the right amount of glue Russ has.

Answers

Answer: 3/5

Step-by-step explanation: 1/5 + 2/5 = 3/5

Answer:

3/5

Step-by-step explanation:

To find the right amount of glue Russ has, we have to add both of the jars of glue. One of them is 1/5 full, and the other is 2/5 full, we add them both together to get 3/5.

Use constant of proportionality to write a proportional relationship please and I will give 100 points been stuck for ever

Answers

Answer:

No it doesn’t  have a proportional relationship

Step-by-step explanation:

solve the following where a,b and c are constants

2y +z= a
3y +6z=b

Answers

if the question is 2y+3y=a and z+6z=b

then i could solve it otherwise sry

BDC is an isosceles triangle.

Answers

Answer:

Down Here

Step-by-step explanation:

Step 2:

Statement: m∠C ≅ m∠B

Reason: sides opposite to congruent angles are congruent

Step 3:

Statement: BE = CE

Reason: Def. of a midpoint

Step 4:

Statement: AE = AE

Reason: Reflexive Property

Step 5:

Statement: ΔACE ≅ ΔABE

Reason: SSS

Step 6:

Statement: m∠AEC ≅m∠AEB

Reason: CPCTC

Step 7:

Statement: DE = DE

Reason: Reflexive Property, Parts whole postulate

Step 8:

Statement: ΔCDE ≅ ΔBED

Reason: SAS

Step 9:

Statement: CD = DB

Reason: CPCTC

-Chetan K

how many square feet of outdoor carpet will we need for this hole 12 2 3 7

Answers

Answer: 122376

Step-by-step explanation:

A rectangle has an area of 36 mm2. All of the sides
are the same length.
What is the length of a single side?

Answers

Answer:

6mm

Step-by-step explanation:

A rectangle with all sides equal is a square

Area=a

36=a

a=6mm

Helppppp ur girl out

Answers

0.59 increase because it went up

A grocery store orders 4 large containers of milk for every 7 small containers of milk.
Which ratio could represent the number of large containers of milk to small containers
of milk in an order from the grocery store?

Answers


8:14 , 12:21 , 16:28

Anyone of these ratios are fine I think

The ratio than could represent the number of large containers of milk to small containers of milk in order from the grocery store is 4:7 or 4/7.

What is a ratio?

The ratio is the simplest form of a fraction involving two quantities determining each other. It is written as a:b, read as "a is to b", and functions as a/b.

How to solve the question?

In the question, we are informed that a grocery store orders 4 large containers of milk for every 7 small containers of milk.

We are asked to determine the ratio of the number of large containers of milk to small containers of milk.

We know that a ratio is a fractional value, and for the number of large containers of milk to small containers of milk, we can write the ratio as:

Ratio = the number of large containers:the number of small containers = 4:7 or 4/7

Learn more about ratios at

https://brainly.com/question/2328454

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Quadrilateral ABCD is inscribed in a circle. Find the measure of each of the angles of the Quadrilateral. Show your work. ( Please do not recopy another students answers on Brainly Or Any Other Websites. You'll be reported if you do. (Will Mark Brainliest if answered correctly. ​

Answers

Answer:

Shown Below.

Explanation:

opposite angles in a quadrilateral sum up to 180°

total interior angles in a quadrilateral is 360°

solve for x:

x - 2 + x + 2 = 180°

2x = 180°

x = 90°

solve for each angle:

1st

x + 2

90° + 2 = 92°

2nd

x - 2

90° - 2 = 88°

3rd

x - 10

90° - 10° = 80°

4th

360° - 80° - 88° - 92° = 100°

A troupe of 8 dancers is going to line up on stage. Of these dancers, 4 are wearing black and 4 are wearing red. A dancer wearing black must be in the first position and they must alternate between colors. In how many ways can the dancers line up?

Answers

Using the Fundamental Counting Theorem, it is found that there are 576 ways for the dancers to line up.

What is the Fundamental Counting Theorem?

It is a theorem that states that if there are n things, each with [tex]n_1, n_2, \cdots, n_n[/tex] ways to be done, each thing independent of the other, the number of ways they can be done is:

[tex]N = n_1 \times n_2 \times \cdots \times n_n[/tex]

In this problem, considering the order:

Black - Red - Black - Red - Black - Red - Black - Red

The number of ways for each is given by:

4 - 4 - 3 - 3 - 2 - 2 - 1 - 2

Hence:

[tex]N = 4^2 \times 3^2 \times 2^2 = 576[/tex]

There are 576 ways for the dancers to line up.

To learn more about the Fundamental Counting Theorem, you can check https://brainly.com/question/24314866

I need help I don’t understand

Answers

Answer:

Decreases

Step-by-step explanation:

As 'n' increases the value of the (1/4) will decrease.

Say, n=1 ; 1/4

n=2 ; 1/4 * 1/4 = 1/16(because n=2, there are two 1/4s)

n= and so on

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