4. 13x + 5y = -11
13x + 11y = 7
Solution:

Answers

Answer 1

Answer:

y=2/3

Step-by-step explanation:

4. 13x + 5y = -1113x + 11y = 7Solution:
Answer 2

Answer:

(-2,3) x= -2 y=3

Step-by-step explanation:

The first thing you should do is convert both into standard y=mx+b form

For the first equation you subtract 5y and add 11 to both sides to get

13x+11= -5y

you divide by negative 5 to get

-13x/5-11/5=y

For the second equation we subtract 11y and 7 from both sides to get

13x-7= -11y

divide both sides by -11 to get

-13x/11 + 7/11

We then set both equations equal to each other and solve for x

-13x/5-11/5= -13x/11 + 7/11

Add 11/5 to both sides to get

-13x/5 = -13x/11 + 156/55

Add 13x/11 to both sides to get

-78/55x=156/55

Divide and solve for x to get -2

Then plug x = -2 into the original equations to find y

13*-2 + 5y = -11

-26 + 5y = -11

Add 26 to both sides

5y= 15

y =3


Related Questions

F(8) =11x + 3 what is the answer to this ?

Answers

Answer:

91

Step-by-step explanation:

11*8=88 +3=91

Answer: The answer would be 91

Step-by-step explanation: since it's originally f(x)=11x+3 and x=8

then you plug in for X.

f(8)=11(8)+3=91

BRAINLIEST PLS

Determine the domain on which the following function is decreasing.

(Please include an explanation)

Answers

the way I remember domain(the distance where x is shown) and range(the distance where y is shown) is that it lines up with an ordered pair. It sounds wrong to say range and domain, just like it sounds wrong to say y,x.

the answer for this would be [0,11]

I need help graphing -8x-y=8​

Answers

Answer:

y = -8x - 8

Step-by-step explanation:

Add -8x on both sides to get -y = 8x + 8 and flip the y sign on the left to get your slope function which is y = - 8x - 8.

To graph the function, you would need to put (0, -8) as your y-intercept, and each unit will go down 8 units when you add 1.

Answer:

y=8x+8

Step-by-step explanation:

Just rewrite the problem so it's in y=mx+b format then it's easy to graph

Remember the y intercept is 8 because when x=0  y=8 and the slope is 8 so go up 8 and right 1

Put the following lengths in ascending order, 900cm, 8.9m, 895cm, 9.1m, 12000mm, 0.0092km.

Answers

Answer: 8.9 m, 895 cm, 900 cm, 9.1 m, 0.0092 km, 12000 mm

===========================================================

Explanation:

To be able to compare these various measurements, all of them must be the same unit. Let's convert each measurement to meters. If the measurement is already in meters, then we'll move onto the next measurement.

Here are some useful conversion factors

1 m = 100 cm1 m = 1000 mm1 km = 1000 m

With those conversion factors in mind, we get the following conversions:

900 cm = (900 cm)*(1 m/100 cm) = (900/100) m = 9 m8.9 m = already in meters, moving on895 cm = 8.95 meters; divide by 100 to convert from cm to meters as shown above9.1 m = already in meters, moving on12000 mm = (12000 mm)*(1 m/1000 mm) = (12000/1000) m = 12 m0.0092 km = (0.0092 km)*(1000 m/1 km) = (0.0092*1000) m = 9.2 m

Here is the summary of the conversions:

900 cm = 9 m8.9 m = 8.9 m895 cm = 8.95 m9.1 m = 9.1 m12000 mm = 12 m0.0092 km = 9.2 m

The original list of

{900cm, 8.9m, 895cm, 9.1m, 12000mm, 0.0092km}

becomes this equivalent list

{9 m, 8.9 m, 8.95 m, 9.1 m, 12 m, 9.2 m}

in that exact order.

After converting everything to meters, we can then sort the values from smallest to largest. Doing so gets us this sorted list of

{8.9 m, 8.95 m, 9 m, 9.1 m, 9.2 m, 12 m}

Then you convert back each measurement to its original form

{8.9 m, 895 cm, 900 cm, 9.1 m, 0.0092 km, 12000 mm}

which is the final answer.

8.9m 895cm 900cm 9.1m 0.0092km 12000mm

8.9m = 890cm = 8900mm = 0.0089km
895cm = 8.95m = 8950mm = 0.00895km
900cm = 9m = 9000mm = 0.009km
0.0092km = 9.2m = 920cm = 9200m
9.1m = 910cm = 9100mm = 0.0091km
12000mm = 12m = 1200cm = 0.012km

Can someone please help me out?

Answers

9514 1404 393

Answer:

  62°

Step-by-step explanation:

The measure of the external angle where the secants meet is half the difference of the arcs they subtend.

  ∠A = (DE - BC)/2

  2×∠A = DE -BC

  DE = BC + 2×∠A

  DE = 38° +2(12°)

  arc DE = 62°

I WILL GIVE BRAINLIEST PLZZ HELP!!!!!!!!!

Answers

Answer:

D half a barrel an hour

Step-by-step explanation:

hope it helps

It’s the last one.:)

Aaron is 6 years old, Beth is 9 years old and Charlie is 15 years old. They are going to share £5940 in the same ratio as their ages. How much do they each receive?

Answers

Answer:

[tex]Aaron=1188[/tex]

[tex]Beth=1782[/tex]

[tex]Charlie=2970[/tex]

Step-by-step explanation:

From the question we are told that

Ratio 6:9:15

Total amount to e shared N=£5940

Generally the Ratio can divide the Total amount mathematically as follows

Ratio

6:9:15/3=2:3:5

Sum of ratio

2+3+5=10

For Aaron

[tex]A=\frac{2}{10} *5940[/tex]

[tex]A=1188[/tex]

For Beth

[tex]B=\frac{3}{10} *5940[/tex]

[tex]B=1782[/tex]

For Charlie

[tex]C=\frac{2}{10} *5940[/tex]

[tex]C=2970[/tex]

Check answer

[tex]A+B+C=5940\\1188+1782+2970=5940[/tex]

what is the greatest whole number that satisfies the inequality 3x -1 < 8 ?

Answers

Answer:

8

Step-by-step explanation:

3x is a varable and -1 is an integer

Cindy spent $65.25 on ingredients for blueberry pies and $62.84 on ingredients for cherry pies. Each slice of ple sells for $3.50.
Part A
Write an expression to represent Cindy's profit if she sells b slices of blueberry pie and C slices of cherry ple.
Part B
Cindy sells 24 slices of blueberry ple and 15 slices of cherry ple. The ne
xt day, she sold 26 slices of blueberry ple and 17 slices of cherry pie. What was her total profit?

Answers

B. 3.5( b + c ) - 28.09

C. $108.41

Step-by-step explanation:
The best expression to use to find the total profit of Cindy's pie is 3.5(b+c) - 28.09. The total profit is the total revenue - total cost.
To put it into perspective, let's try an example.
b = 5
c = 12
Total profit = 3.5(b + c) - 28.09
= 3.5 (5 + 12) - 28.09
= 3.5 (17) - 28.09
= 59.5 - 28.09
Total profit = $31.41
Now for part B, we simply use the expression and substitute the values.
b = 24
c = 15
Total profit = 3.5(b + c) - 28.09
= 3.5(24 + 15) - 28.09
= 3.5(39) - 28.09
= 136.5 - 28.09
Total profit = $108.41

The expression that represents Cindy's profit is $3.5b - $128.09.

Cindy's total profit is $30.82.

What is profit?

Profit is total revenue less total cost. Total revenue is the selling price per unit multiplied by the total units sold.

Profit = total revenue - total cost

($3.50b) - ($65.25 + $62.84)

$3.5b - $128.09

What is Cindy's total profit?

Profit for the first day = $3.5(24 + 15)  - $128.09

= ($3.5 x 39) - $128.09

= $136.50 - $128.09

=$8.41

Profit for the next day = $3.5(26 + 17)  - $128.09

= ($3.5 x 43) - $128.09

= $150.50 - $128.09

= $22.41

Total profit = $22.41 + $8.41 = $30.82

To learn more about profit, please check: https://brainly.com/question/26181966

Solve the equation for X and show your work.
3x= 15

Answers

x=5

divide both sides by 3

3/3
15/3

5

Answer:

5

Step-by-step explanation:

15/3=5

Which method can you use to prove that the triangles are congruent

Answers

Answer:

ΔASA ≅ ΔASA

Step-by-step explanation:

HELP. Linoleum floor tiles are each a 12-inch square. What is the minimum number of these tiles needed to tile the entire floor of a 6 ft by 4 ft rectangular kitchen and a 14 ft by 4 ft rectangular hallway?

Answers

80
Explained:
Find the area you need to cover,
(6•4)+(14•4)=80 square ft
A 12 inch square tile is 1 foot wide
There for 80/1=80 tiles

If a football field is 100 yards long and 54 yard wide and what is the area in perimeter of that football filed

Answers

Answer:

5400

Step-by-step explanation:

you would measure the length and width. Multiply the length by the width to get the area, and add twice the length to twice the width to get the perimeter

I don't know how to solve for any of the values so please help me!!

Answers

a = 49

You find this by adding 109 and 30, then subtracting from 180.

b = 55
c = 55

we know that the place where the two lines meet has to be 360, so we subtract the two 109s from it. Divide the answer by 2. This number is added to 54 and subtracted from 180. This gives us 55. c is in a position that equals 55.

Pls help I need an answer quick!

Answers

Answer:

[tex]\displaystyle 9[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle 8 + (7 + 1)^2 \div 4 \cdot (\frac{1}{2})^4[/tex]

Step 2: Evaluate

(Parenthesis) Add:                     [tex]\displaystyle 8 + (8)^2 \div 4 \cdot (\frac{1}{2})^4[/tex]Exponents:                                 [tex]\displaystyle 8 + 64 \div 4 \cdot \frac{1}{16}[/tex]Divide:                                        [tex]\displaystyle 8 + 16 \cdot \frac{1}{16}[/tex]Multiply:                                      [tex]\displaystyle 8 + 1[/tex]Add:                                            [tex]\displaystyle 9[/tex]

Explain how please I’m not sure

Answers

Answer:

164 degrees

Step-by-step explanation:

The measure of the individual internal angle in a polygon is;

(n-2)180/n

n = 22

So we have;

(22-2)180/22

= (20 * 180)/22

= 163.64 degrees

To the nearest whole number, this is 164

Can someone please help me

Answers

Answer:

y=4/5x-1 is the answer (A)

Step-by-step explanation:

Answer: Step-by-step explanation:

the first one would be your answer (y= 4/5x -1)

because the y intercept is -1 and the rise if 4 and run is 5 and that would be your slope.

find x if 5x+19=2x+64

Answers

Answer:

x=15

Step-by-step explanation:

5x+19=2x+64

5x-2x=64-19

3x=45

x=15

Answer:

5x+19=2x+64

3x+I9=64

3x=45

I5

Hello can some one answer all these

752 divided 47
375 divided by 25
576 divided by 24
(5 points)

Answers

1. 16

2. 15

3. 24 hope this helps!

Answer:

1.   752/47=16

2.  375/25=15

3.  576/24=24

hope this helps!!:)

Step-by-step explanation:

1.

1. Find the Greatest Common Factor (GCF) of 752 which is 47 .

2. Divide both the numerator and the denominator by the GCF.

752/47

47/47

3. simplify

16

hope this helps!!:)

A bottle contains 2/6 liters of soda. Ann has 12 of these bottles.
How much soda does she have in all? write in simplest form

Answers

Answer:

4 liters

Step-by-step explanation:

simplify 2/6 = 1/3

Multiply 1/3 times the 12 bottles

1/3 * 12

12/3

Simplify

4

Answer:

4 liters of soda.

Step-by-step explanation:

2/6⋅12=24/6

24/6=4

Therefore, your answer is 4 liters.

Please help! I don’t have much to offer except the crown icon thing and 15 points.

Answers

SOLUTION:

x/9>12

x>12×9

x>108

This is your answer

FACTORIZAR LOS SIGUIENTES POLINOMIOS.

a2 - 81 =

Answers

Answer:

(a+9)(a-9)

Step-by-step explanation:

Both terms are perfect squares, use the difference of squares formula

a^2-b^2=(a+b)(a-b) where a=a and b=9

Help please :( !
Example :Martin mixes a cleaning spray that is 1 part vinegar to 5 parts water .

Answers

Answer:

1:5

5

125

2

Step-by-step explanation:

I'm not too sure how to explain this, if you have a question just ask

From the equation y−3=−2(x+1), identify the slope and a point on the line.

Answers

Answer:

slope = - 2, point on line = (- 1, 3 )

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

y - 3 = - 2(x + 1) ← is in point- slope form

with slope m = - 2 and (a, b ) = (- 1, 3 )

The slope of equation y−3=−2(x+1) is -2.

What is Slope?

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

Given:

y−3=−2(x+1)

Using Slope- Intercept form

y= mx + b

So, the slope for the equation is -2.

Hence, the slope is -2.

Learn more about slope here:

https://brainly.com/question/3605446

#SPJ2

Megan Dunstall wants to know how many months it would take for $15,000 to earn $618.75 at 51/2% of simple interest?

Answers

Answer: 9 months.

Step-by-step explanation:

Simple interest = Principal x rate(in decimal)  x Time(in years)

Given: Principal = $15,000 , rate = [tex]5\dfrac12\%=\dfrac{11}{2}\%= 5.5\%= 0.055[/tex]

Interest =  $618.75

let t= time

Then,

[tex]618.75=15000\times 0.055\times t\\\\\Rightarrow\ t=\dfrac{618.75}{15000\times0.055}\\\\\Rightarrow\ t= 0.75\ or\ t=\dfrac34\ year[/tex]

1 year =12 months

[tex]\dfrac34\ year=\dfrac34\times12 = 9\ months[/tex]

Hence, it will take 9 months.

Simplify

1/2 + (3/8 - 1/8)^2

Answers

9/16

Decimal form - 0.5625

You welcome :)

a) Write the sequence of natural numbers which are multiplied by 3 ?
b) Write the sequence of natural numbers which are multiplied by 3 and added to 1 ?
c) Check whether the sequence obtained above is an arithmetic sequence or not?​

Answers

Answer:

a) 3, 6, 9, 12, 15,...,[tex]3\cdot n[/tex], b) 4, 7, 10, 13, 16,...,[tex]3\cdot n +1[/tex], c) Both sequences are arithmetic.

Step-by-step explanation:

a) The sequence of natural numbers which are multiplied by 3 are represented by the function [tex]f(n) = 3\cdot n[/tex], [tex]n\in \mathbb{N}[/tex]. Let see the first five elements of the sequence: 3, 6, 9, 12, 15,...

b) The sequence of natural numbers which are multiplied by 3 and added to 1 is represented by the function [tex]f(n) = 3\cdot n + 1[/tex], [tex]n\in \mathbb{N}[/tex]. Let see the first five elements of the sequence: 4, 7, 10, 13, 16,...

c) Both sequences since differences between consecutive elements is constant. Let prove this statement:

(i) [tex]f(n) = 3\cdot n[/tex]

[tex]\Delta f = f(n+1) -f(n)[/tex]

[tex]\Delta f = 3\cdot (n+1) -3\cdot n[/tex]

[tex]\Delta f = 3[/tex]

(ii) [tex]f(n) = 3\cdot n +1[/tex]

[tex]\Delta f = f(n+1)-f(n)[/tex]

[tex]\Delta f = [3\cdot (n+1)+1]-(3\cdot n+1)[/tex]

[tex]\Delta f = 3[/tex]

Both sequences are arithmetic.

Which data set is MOST LIKELY to be normally distributed?
A)
1
B)
2
C)
3
D)
4

Answers

Answer:a

Step-by-step explanation:

Doing it now on usatestprep

HELP ME PLEASE POINTS WILL BE GIVEN JUST HELP ME PLEASE POINTS WILL BE GIVEN PLEASE JUST HELL

Answers

Answer:

I would say the answer is 5.03m^2

Step-by-step explanation:

Hope this helps! Please consider marking brainliest! I hope you have an amazing day. Always remember, your smart and you got this! -Alycia :)

Answer:

a

Step-by-step explanation:

Need help

Find the value of x

Answers

The value of x would be 62
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