Solve the system by substitution y=5x-9
-3x+7y=1

Answers

Answer 1

Answer:

{ 62/45,19/9}

Step-by-step explanation:


Related Questions

two angles of a triangle measure 29 degrees and 12 degrees what is the measure of the third angle?

Answers

Answer:

The measurement of the third angle would be 139 degrees.

Step-by-step explanation:

Using the triangle sum theorem, you already know that all interior angles of a triangle add up to 180 degrees. So since you already have two angle measurements, all you have to do is add them together and subtract them from 180 degrees. In this case it is 29+12, which equals 41. Now you subtract that from 180 and get 139.

I hope this helps!

PLEASE I NEED HELP!

which is the simplified rational expression for r^2-4r+5/r-4 - r^2+2r-8/r-4

C is incorrect!

Answers

fourth one i think (the way u typed the q is confusing)

Answer:Complete the statements.

When r = 2, the first expression is . 6

When r = 2, the second expression is 6.

When r = 5, the first expression is 21.

When r = 5, the second expression is .

The expressions are not equivalent. 12

Step-by-step explanation:

i got it right on e d g e n u i t y

Step-by-step explanation:

Hola me podrían ayudar por favor. Convertir las fracciones a decimales y ubicar a los decimales en la recta numérica. a. 2/3 b. 8/5 c. -5/2 d. 7/4 e. 9/2 f. -11/3 g. 13/5 d. -7/4

Answers

Answer:

Step-by-step explanation:

a decimal

2/3 = 0.7

8/5 = 1.6

-5/2 = -2.5

7/4 = 1.8

9/2 =  4.5

-11/3 = -3.7

13/5 = 2.6

-7/4 = -1.8

Esto es solo un bosquejo del número, usando un gráfico, use 0.1 para una unidad en la recta numérica.

-  ________________________________________________________ +

  |    |     |      |     |       |      |       |     |     |     |    |       |     |     |      |     |     |       |            

-5  -4 -3.7  -3 -2.5  -2  -1.8   -1    0  0.7  1   1.6  1.8  2   2.6   3   4   4.5   5

PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!
PLSSSS SHOWWW THE WORKKK!!!!

Answers

Answer:

there is the answer let me now if i was right

Step-by-step explanation:

An oval track is made by endosing semicircles on each end of a 50 m by 100 m rectangle. Find the area endowed by the track. Use 3.14 fotz
The area ended by the track is
(Pound to the nearest hundredth as needed.)

Answers

Answer:

66

Step-by-step explanation:

edmentum

Answer: A=6,612+3.14(29)^2

A=6,612+3.14*841

A=6,612+2,640.74

A=9,252.74 m^2. ans.

--------------------------

IF the semicircircle is on the 116m end then just replace the 58 by 116.

Step-by-step explanation:

Hiiioo Can someone please help me

Question: ABCD is a rhombus. It has vertices located at A(10,6), B(7,2) and C(7,7). What are the coordinates of vertex D?
A. (10,3)
B. (10,11)
C.(10,7)
D. (10,-1)

Answers

Plot the coordinates on graph paper, the only corresponding vertex that gives a rhombus (all sides the same length) is b (10,11)

OMG SOMEONE HELP ME

Solving inequalities.

4x + 7 > 23

Answers

Answer:

x > 4

Step-by-step explanation:

Emilia pays $24 to rent a boat at the lake for up to 6 hours. She constructs the inequality and number line below to represent the number of hours, x , she can use the boat.
Are emilias inequality’s and number line correct? Explain your reasoning by completing the statements. Click the arrow to choose an answer from each menu

Answers

Answer:The Answer is 4

Step-by-step explanation:

24/4=4

Emilia pays $4 dollars per hour

Joe is straight into running a half marathon in too much this week he ran 1,200,000 km on Monday 2400 m on Wednesday and 4.6 km on Friday what is the total distance in kilometer that he ran this week

Answers

Answer:

1202404.6

Step-by-step explanation:

1,200,000 + 2400 =1202400

1202400 + 4.6 = 1202404.6

What is the apparent solution to this system of equations?
(Write your answer as an ordered pair)

(FIRST TO ANSWER GETS BRAINLIEST)

Answers

(3,2)
:):)
Hope this helps!!!!!

Answer:

x = (3,3)

Step-by-step explanation:

This is going to be x = (3,3) because this is showing where the x, y stand. The x goes, ∧ and the y goes to the ⇒ SO this is going to be x = (3,3) because the x comes first before the 2!

A fraction that contains a fraction in its numerator or denominator is
called a(n) ??

Answers

Complex fraction.

Hope this helped!

A fraction that contains a fraction in its numerator or denominator is called a complex fraction

7. Which set of ordered pairs represents a function?
A) {(-2,1),(-1,0). (1,-1), (2,-2), (3,-3)}

B) {(-2,57, (-2,5), (-2,7),(-2,9), (-2,11)}

C) {(1,5), 7,2), (9,1), (9,7), (2,7)}

D) {(-4,0), (-2,1),(0,2), (-2,4), (-4,6)}

Answers

Answer:

a

Step-by-step explanation:

to be a function, every x has to have exactly one y, so there can't be the same number x twice wirh different y's

WHAT IS THE VALUE OF X PLEASE HURRY!!!!

Answers

Answer:

I think 48, since it's an equilateral triangle.

Step-by-step explanation:

Answer:

48

Step-by-step explanation:

cuz its a equilateral triangle

what are the measures of angle a,b,c? show your work and explain

Answers

Answer: A= 40. Vertical angles are congruent; B=50. 40+90=130 180-130=50; c=115 bc 180-65=115

Step-by-step explanation:

I need Help badly please help

Answers

Answer:

Its a

Step-by-step explanation:

Answer:

n = 72

Step-by-step explanation:

Multiply both sides of the equation by  8

[tex]8*\frac{n}{8}=8*9[/tex]

Simplify/Solve.

[tex]n=72[/tex]

hope this helps :)

1 Jesy invests £8000 for n years in a savings account.

To find the value, V, of her investment after n years she uses the formula:


V = 8000 × (1.025)n

(a) Write down the annual rate of interest Jesy earns.

(b) Find the total amount of interest Jesy earns in three years.

(Total for question 1 is 3 marks)

Answers

Answer:

2.5% , $8608

Step-by-step explanation:

Given data

From the given the expression V = 8000×(1.025)^n

The rate is given as

2.5%

For n= 3

The total amount is

V = 8000 × (1.025)^3

V= 8000*1.076

V= $8608

Hence the final amount is $8608

help please i will give you brainliest if you actually help me

Answers

it is 575 !!!!!!!!!!!!

A supplementary angle has three angles one being 44.4 another being 7x and another is 8x. I'm having a hard time.

Answers

Answer:

x= 9.04°

7x = 63.28°

8x = 72.32

44.4° + 63.28° + 72.32° = 180°

Step-by-step explanation:

The sum of supplementary angles is 180°

Set up an equation with the given information, then solve for x.

44.4 + 7x + 8x = 180

7x +8x = 180-44.4

15x = 135.6 Divide both sides by 15

x = 9.04

Substitute for x and multiply by 7, then 8 to find the measures of the unknown angles.

Maggie is trying to find the best deal to buy bags of potato chips. Option A: $0.90 for 9 bags of chips Option B: $0.84 for 7 bags of chips Option C: $1.50 for 5 bags of chips Which option is the better deal?
A
Option A
B
Option B
C
Option C

Answers

Answer:

The answer is option A. Since you would be paying 0.10 for each bag.

The solution is Option A.

The best deal for Maggie to buy the bag of potato chips would be 9 bags for $ 0.90 because each bag cost $ 0.10

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the cost of each bag be represented as A

Now , the equation will be

a)

$0.90 for 9 bags of chips

The cost of 9 bags = $ 0.90

The cost of 1 bag A = The cost of 9 bags / 9

Substituting the values in the equation , we get

The cost of 1 bag A = 0.90 / 9

On simplifying the equation , we get

The cost of 1 bag A = $ 0.10

b)

$0.84 for 7 bags of chips

The cost of 7 bags = $ 0.84

The cost of 1 bag A = The cost of 7 bags / 7

Substituting the values in the equation , we get

The cost of 1 bag A = 0.84 / 7

On simplifying the equation , we get

The cost of 1 bag A = $ 0.12

c)

$1.50 for 5 bags of chips

The cost of 5 bags = $ 1.50

The cost of 1 bag A = The cost of 5 bags / 5

Substituting the values in the equation , we get

The cost of 1 bag A = 1.50 / 5

On simplifying the equation , we get

The cost of 1 bag A = $ 0.30

Therefore , the 0.10 < 0.12 < 0.30

Hence , the cost of $0.90 for 9 bags of chips is the best deal

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ5

20 points!!! Will mark brainlist to whoever gives me the correct answers with the work:)

Use the information below for Part A, Part B, and Part C.

f(x) = 1/2x -7

g(x) = 2x + 14

Part A: Find (fog)(x). Show your work.

Part B: Find (gºf)(x). Show your work.

Part C: Use your answers to Part A and Part B to determine whether the two functions are inverses. Explain your answer fully.

Answers

Answer:

(1/2(2x+14)-7) = 1x+7-7= x g(f(x))= 2(1/2x-7)+14= x-14+14= xWe have the result being two variables of linearity hence they are not inverses. In order to be inverses they should have had switched notations, ie: -x vs x

9514 1404 393

Answer:

  A:  (f∘g)(x) = x

  B:  (g∘f)(x) = x

  C:  the functions are inverses

Step-by-step explanation:

A: (f∘g)(x) = f(g(x)) = f(2x +14)

  = 1/2(2x +14) -7 = x +7 -7 = x

  (f∘g)(x) = x

__

B: (g∘f)(x) = g(f(x)) = g(1/2x -7)

  = 2(1/2x -7) +14 = x -14 +14 = x

  (g∘f)(x) = x

__

C: When a function is operated on by its inverse, then original argument value is restored. That is the case for functions f and g, so the two functions are inverses.

3. Identify the pair of angles,
2
O complementary
supplementary
neither

Answers

Answer:

I am almost positive it is Complementary.

Step-by-step explanation:

Sorry if i am wrong please let me know if i am.

HELP I NEED HELP ASAP

Answers

Answer:

i think its; there  all inequalities

Step-by-step explanation:

Write a proportion to find how many points a student needs to score on the test to get the given score. Test worth 50 points; test score of 84%

Answers

Answer:

42

Step-by-step explanation:

Test worth = 50

To obtain a grade percent = 84%

Score to obtain = x

Using the expression :

84% of test worth = x

84/100 * 50 = x

0.84 * 50 = x

42 = x

Score to obtain = 42

Simplify the expression: 12 +6w² + 5m² + 14w + 9m² + 4w + 10​

Answers

Answer:

[tex]14m^{2} + 6w^{2} + 18w +22[/tex]

Step-by-step explanation:

Break the function into pieces and combine like terms:

[tex](9m^{2}+5^{2})=14m^{2}[/tex]

[tex]6w^{2}[/tex]

[tex](14w+4w)=18w[/tex]

[tex](10+12)=22[/tex]

Now arrange the pieces in proper order (order of exponents)

[tex]14m^{2} +6w^{2} +18w+22[/tex]

plz mark me brainliest. ;)

I need to find the missing angle measures.

Answers

Answer:

step 1. b = 102° (vertical angles)

step 2. one complete revolution equals 360°

step 3. a + b + c + 102 = 360

step 4. a + 102 + c + 102 = 360

step 5. a + c = 156°

step 6. 2a = 156 (vertical angles are equal)

step 7. a = 78°, c = 78°.

The dimensions of an actual swing set are shown. You want to create a scale model of the swing set for a dollhouse using similar triangles. Sketch a drawing of your swing set and label each side length. Then write a similarity statement for each pair of similar triangles and state the scale factor you used to create the scale model.

Answers

The dimensions of the scaled drawing are half the lengths of the dimensions of the original drawing

What are scaled drawings?

Scaled drawings are diagrams that shows the image of an object drawn in a reduced or enlarged proportional size.

How to determine a scale ratio

If the diagram is to be enlarged, then the scale ratio will be greater than 1.

However, smaller diagrams will have a scale ratio less than 1

In this case, we make use of a scale ratio of 0.5 or 1/2

This means that, the scaled drawing will have its lengths to be half of the original drawing

See attachment for the original drawing and the sketch of the scaled drawings

Read more about scaled drawing at:

https://brainly.com/question/24579126

1. Clare has $54 in her bank account. A store credits her account with a $10 refund. How much does she now have in the bank?​

Answers

Answer:

$64

Step-by-step explanation:

¿El 48 es multiplo de 2? _________ ¿por que?
ayuda es para hoy ​

Answers

Answer:

si 48 es múltiplo de 2 ya que al multiplicar 2. 24 da 48

if you know what’s going on pls help thanksss

Answers

basically u are representing the graphs below in symbols and words if that makes any sence

Answer:

1. > less than

2. =< (I can't find the symbol for this but a line should be under the < and thats it) Greater than or equal to

3. < greater than

4. >= less than or equal to

3 1/3 x 3 =??
Not quite understanding

Answers

Answer:

10

Step-by-step explanation:

Answer: 10

Step-by-step explanation:

3 1/3 * 3 = 10

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