2x + y = 11

3x - y = 4

Answers

Answer 1

Answer:

[tex]x=3,y=5[/tex]

Step-by-step explanation:

Add the equations together and solve for x.

[tex](2x + y )+ (3x - y) = 11 + 4[/tex]

[tex]5x=15[/tex]

[tex]x=3[/tex]

Use equation [tex]2x+y=11[/tex]  to solve for y.

[tex]2(3) +y=11[/tex]

[tex]6+y=11[/tex]

[tex]y=11-6[/tex]

[tex]y=5[/tex]


Related Questions

help meeeeeeeeeeee
pls

Answers

Answer:

with what lol?

Step-by-step explanation:

Answer:

with what

Step-by-step explanation: ican help

please help me solve this problem thankyou
Simplify 2/6+1/4

Answers

Answer:

same denominator as 12

2 x 2/ 6 x 2 + 1 x 3/ 4 x 3

4 +3/ 12

= 7/12

Answer:

The answer is 7/12

I HOPE IT HELPS ❤️❤️

Complete the solution of the equation. Find the
value of y when x equals 15.
-3x - y = -51

Answers

Answer:

The solution of the equation    y = 36

Step-by-step explanation:

Explanation:-

Given equation -3x-y =-51

Given that x =15 in equation -3x-y=-51

                 ⇒        - 3(15) - y = -51

                ⇒         - 15 - y =-51

                 ⇒         -15+ 51 = y

               ⇒            y = 36

Pairs of markings a set distance apart are made on highways so that police can detect drivers exceeding the speed limit. Over a fixed​ distance, the speed R varies inversely with the time T. In one particular pair of​ markings, R is mph when T is seconds. Find the speed of a car that travels the given distance in seconds.

Answers

Answer:

4

Step-by-step explanation:hrllo sdkksfdjg jdskl fg

PLEASE HELP
2/3x-1/5>1 x=?​

Answers

Answer:

x>9/5

Step-by-step explanation:

2/3x-1/5(+1/5)>1(+1/5)

[add 1/5 on both sides]

2/3x (÷3/2)>6/5 (÷3/2)

[flip 2/3 to 3/2 so that they cancel out]

x>9/5

3.
Which equation, together with y =-1.5x +3, makes a system with one solution?
A.
y =-1.5x + 6
B.
y=-1.5x
C.
2y =-3x + 6
D.
2y + 3x = 6
E.
y=-2x + 3

Answers

Answer:

Its would be E

Step-by-step explanation:

1.5x + 3 = -2x + 3    -1.5x = -2x   0.5x = 0  x = 0

Which is 0,3 and it’s only one solution.

The equation that gives the solution together with y = -1.5x + 3 is

y = -2x + 3

Option E is the correct answer.

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 - 9 is an equation.

We have,

y = -1.5x + 3 ____(1)

y = -2x + 3 ____(2)

From (1 ) and (2) we get,

-2x + 3 = -1.5x + 3

-2x + 1.5x = 3 - 3

-0.5x = 0

x = 0

Now,

y = -2x + 3

y = 0 + 3

y = 3

Thus,

The solution is (0, 3).

Learn more about equations here:

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Colin buys a car for £16300. It depreciates at a rate of 3% per year. How much will it be worth in 4 years? Give your answer to the nearest penny where appropriate. £

Answers

Answer:

The car will be worth £14,430.27 in 4 years.

Step-by-step explanation:

Average annual value lost: £1,186.37

First year depreciation: £489.00

Total depreciation: £1,869.73

Total depreciation percentage: 11.47%

Value of vehicle at end of ownership period: £14,430.27

HOPE THIS HELPS!!!

BRAINLIEST PLEASE

Please help me please

Answers

The second one. is it right?

Sally runs for 5 miles. She drinks one bottle and 4/5 a bottle of water for every mile. If she runs for 3 more miles, how many bottles of water will she have drunk? Please help!!

Answers

Answer:

2.4 or 2 2/5 bottles of water

PLEASE ANSWER FAST!!!!!

Word problem ideas for 4x+10 2(x-6)

Answers

Step-by-step explanation:

Simplify 2(x-6)

2x+2•-6

2x-12

4x+10=2(×-6)=2x-12

Need help w this due today

Answers

Answer:

Step-by-step explanation:

you have a right triangle,

a^2+b^2=c^2

10^2=4^2+b^2

100=16+b^2

100-16=b^2

84=b^2

b=9.16

X= helppp will put as brainliest

Answers

Answer:

the correct answer of x is 16

A 3-meter roll of red ribbon costs $1.89. What is the unit price?

Answers

Answer:

The price of ribbon is $0.63 per meter.

Step-by-step explanation:

It is given that:

Cost of 3 meter ribbon = $1.89

Unit price per meter = [tex]\frac{1.89}{3}[/tex]

Unit price per meter = $0.63 per meter

Therefore,

The price of ribbon is $0.63 per meter.

A rectangular poster is 2/3 meter long and 1/2 meter wide. What is the area of the poster in sqaure meters?​

Answers

Answer:

1/3 square meters

Step-by-step explanation:

Area = length x width

2/3 x 1/2 = 2/6 = 1/3

Solve the quadratic equation 3x^2-9x+1=0.
Please help.

Answers

Answer:

Exact Form-9+√69÷6

Decimal form-2.88443731

Step-by-step explanation:

2(3y + 6) - 30 -4 - у)

Answers

you have to distribute if I'm not wrong 2(3y+6)-30 (-4-y)

2x3y= 6y 2×6=12 -30×-4=120 -30×-y=30y

6y+12+120+30y

Madison saves 40% of all that she earns for washing cars. So far she has saved $72 . How much has she earned in all?

Answers

Answer:

40% = 72

divide both sides by 40 to find 1%

1% = 1.8

now multiply by 100 to find total amount earned

100% = 180

total earned $180

PLS HELP I WILL GIVE YOU BRAINLY IF YOUR THE FIRST WHO ANSWERS!!!

Answers

Answer:

i think an right angle

Step-by-step explanation:

The graph of g(x) is the result of translating the graph of f(x) = [1/2]× three units to the left. What is the equation of g(x)?

A. g(x)=[1/2]×-3
B. g(x)=[1/2]×+3
C. g(x)=[1/2]×-3
D. g(x)=[1/2]× +3

Answers

To shift a graph to the left you add to the x value

The answer would be B. g(x)=[1/2]×+3

The equation of g(x) = [1/2]x + 3 which is correct option (B)

What is translation of graph?

A translation of a graph is a shifting of the graph either horizontally or vertically parallel to the axis.

If g(x) was translated three units to the left to create f(x)= [1/2]x, then

g(x) - 3 = f(x)

g(x) = f(x) + 3 = [1/2]x + 3

So g(x) = [1/2]x + 3

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Bella measured the heights of her corn stalks in centimeters. The heights are 81, 88, 69, 65, 87.
What is the mean height of Bella's corn stalks?
A. 69 cm
B. 75 cm
C. 78 cm
D. 80 cm
E. 81 cm

Answers

It would be E I’m not sure but maybe

What is y? Helppp thank you !

Answers

Answer:

y = 42

Step-by-step explanation:

Since QT is a midsegment then it is half of RS , that is

QT = [tex]\frac{1}{2}[/tex] RS, substitute values

y = [tex]\frac{1}{2}[/tex] (y + 42) ← multiply both sides by 2 to clear the fraction

2y = y + 42 ( subtract y from both sides )

y = 42

Y= 42 this is the answer hope it helps

enter the expression that is equivalent to: -1/2(6x - 10)​

Answers

It’s will be (-3x+5)
Because u have to divide bc it’s half

At school 40% of the teachers teach English if 20 teachers teach English how many teachers work at school

Answers

Answer:

Step-by-step explanation:

Change the 40% to a decimal, which is 40/100 or also equivalent to 2/5

Then divide the number of teachers by the percentage/decimal of teachers

20/(2/5) = 100/2 = 50 total teachers

The total number of teachers in the school is 50 teachers

What is Percentage?

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %

Given data ,

Let the total number of teachers in the school be = A

The percentage of teachers in the school who teach English = 40 %

The total number of English teachers = 20 teachers

So the percentage equation is ,

To calculate the total number of teachers

40 percentage of total teachers = 20 English teachers

So ,

( 40 / 100 ) x A = 20

Multiply by 100 on both sides , we get

40A = 2000

Divide by 40 on both sides , we get

A = 50

Therefore , the value of A is 50

Hence , the total number of teachers in the school is 50 teachers

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(2x + 4- 6x=24,5)
Find x

Answers

Answer:

x=  −241 /4

Step-by-step explanation:

Which transformation(s) can be used to map one triangle onto the other? Select two options.

Answers

Answer:

Reflection only and rotation then translation I believe

if you have 5 true or false questions with 4 answers each how many test are possible

Answers

Answer:

20 answers possible.

Step-by-step explanation:

5(4) is 20, since there are 5 true or false questions, and 4 answers per question, there will be a total of 20 questions.

y=x+4

2x+3y=17

SOLVE USING SUBSITUTION

Show work

Answers

Answer:

( 1, 5 )

x = 1

y = 1

Step-by-step explanation:

y = x + 4

2x + 3y = 17

Since they gave us the value of "y" we can use that and substitute it into the equation to find what "x" is.

2x + 3y = 17

2x + 3 ( x + 4 ) = 17

Distributive Property

2x + 3 * x + 3 * 4 = 17

2x + 3x + 12 = 17

Combine Like Terms ( 2x and 3x)

5x + 12 = 17

Subtract 12 on both sides of the equation

5x + 12 - 12 = 17 - 12

5x = 5

Divide by 5 on both sides to isolate the variable

5x/5 = 5/5

x = 1

Now that we have what "x" is, we can substitute that into one of the equations to get the value of "y"

y = x + 4

y = 1 + 4

y = 5

x = 1

y = 5

( x, y )

( 1, 5 )

Hope this helped!

Have a supercalifragilisticexpialidocious day!

What is the area of the triangle?
7
4
8
units2

Answers

Answer:

14 units²

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

Here b = 7 and h = 4 , so

A = [tex]\frac{1}{2}[/tex] × 7 × 4 = [tex]\frac{1}{2}[/tex] × 28 = 14 units²

~ ! ANGLE MEASURE ! ~
~Someone please help me out-~
Parallel lines m and n are cut by a transversal t. Which two angles are corresponding angles?

A. ) ∠1 and ∠5
B. ) ∠1 and ∠6
C. ) ∠1 and ∠2
D. ) ∠1 and ∠7

Answers

Answer:

1 and5

Step-by-step explanation:

.......?...........

Answer:

Yes! A. 1 and 5, is 100% correct

1.V Diferența a două numere este 38, iar descăzutul este 76. Scăzătorul este:

a. 38;

b. 29;

d. 83.

-

C. 114;

Answers

Răspuns:

38

Explicație pas cu pas:

Dat fiind :

Diferența dintre numere = 38

Subtractorul = x

Scădere = 76

Diferența dintre numere;

Scădere - scădere = diferență

76 - scădere = 38

76 - 38 = subtractor

Subtractor = 38

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