If x = 2y + 3 and 4x – 5y = 9, what is the value of y?

Answers

Answer 1

Answer:

Step-by-step explanation:

y=-1 ans.

x=2*-1=3

x=-2+3

x=1 ans.

Proof:

4*1-5*-1=9

4+5=9

9=9

Answer 2

Answer:

9

Step-by-step explanation:


Related Questions

help please i rlly need the answers as soon as possible

Answers

The unit rate of the graph is 3
the unit rate it 3 because it goes up three over one which is the rise over run so it would look like 3/1 but simplified its 3

help please! due today!

Answers

If ,

[tex]\tt{z=-3+5i }[/tex] ⠀

so,

[tex]\overline{z}[/tex]=[tex]\tt{ -3-5i }[/tex]

Because,

In the argand plane ,[tex]\overline{z}[/tex] is the reflection of z in x-axis

f(x)=9/x , g(x) = x / x + 1

Answers

Answer

f(x)=9/x , g(x) = x / x + 1 = 9/2

Step-by-step explanation:

A teacher is taking a group of students on a field trip to a living museum. The
cost of the teacher's ticket is $9. Student tickets cost $4. It costs $57 for
everyone to get into the museum. How many students were on the field trip?

Answers

Answer:My answer would be 2052

Step-by-step explanation:

513 X 4=2052

A grocery store sells tangerines in 25kg bags. A customer bought 4 kg of tangerines for a school party. How many bags did he buy?1.Select allequations that represent the situation.
a.4⋅25=?
b.?⋅25=4
c.25÷4=?
d.4÷25=?
e.?÷25=

Answers

The answer is EI did the same problem as you the other day lol

LOOK AT PICTURE look at picture

Answers

Answer:

-25.776

Step-by-step explanation:

-7.2

x 3.58

Multiply to get the sums and add them together to get your answer.

Help pls!! Find the value of x and m

Answers

Answer:

The answer's the third one listed.

Step-by-step explanation:

The equation to solve for x is:

6x + 16 + 10x - 6 + 90 = 180

16x + 100 = 180

16x = 80

x = 5

To solve for angle BCD, just substitute 5 for x

m = 10(5) - 6

m = 50 - 6

m = 44

The answer is X = 5, you can use Symbolab to solve these kinds of problems.

The expression 20a + 13c is the cost (in dollars) for adults and students to enter a science center. Find the total cost for 4 adults and 24 students.

Answers

Answer:

$392

Step-by-step explanation:

Given the expression :

Total cost = 20a + 13c

a = adult

c = student

The total cost for 4 adults and 24 students

a = 4 ; c = 24

Total cost :

20(4) + 13(24)

80 + 312

= $392

The table shows the amount of apple sauce made from one apple of each size. Patrice has 17 medium apples and 23 large apples. What is the total amount of apple sauce that she can make with these apples? here's the table:

Apple size: small medium large


1/3 cup 1/2 cup 3/4 cup

Answers

Answer:

uhhhhh 75

Step-by-step explanation:

3 49 2
- + - x -
8 14 7
Show your working clearly
—————
(Fractions)

Answers

your answer is here

Please mark me BRAINLEST

Which is not a representation of the equation y = 0.5x - 2?
Select one: just look at the picture.

Answers

Answer:

D is incorrect so ur answer is D

If you know the answer could you please help me out I would really appreciate it thank you!!

Answers

Answer:

X=4 ; X minus two equals zero

Step-by-step explanation:

X minus two equals zero:

x-2=2

Add two to both sides:

x=4

4. The length of a rectangle is one more than twice the width. The area is 105 in?.
Find the WIDTH of the rectangle. *

Answers

9514 1404 393

Answer:

  7 in

Step-by-step explanation:

For width w in inches, the length is given as 2w+1. The area is the product of length and width, so we have ...

  A = LW

  105 = (2w +1)w

  2w^2 +w -105 = 0

To factor this, we're looking for factors of -210 that have a difference of 1.

  -210 = -1(210) = -2(105) = -3(70) = -5(42) = -6(35) = -7(30) = -10(21) = -14(15)

So, the factorization is ...

  (2w +15)(w -7) = 0

Solutions are values of w that make the factors zero:

  w = -15/2, +7 . . . . . negative dimensions are irrelevant

The width of the rectangle is 7 inches.

ASAP HELP! Which equation is NOT linear?
O y = 5x
O y = 3 + 4x
O y = 2x3 - 1
O y = -3x -7

Answers

Answer:

y=5x  is not linear

Step-by-step explanation:

option A is not linear

please help me with this thankyou ​

Answers

Answer:

Area of the Rectangle is (length×breadth)

[tex]5 {x}^{5} {y}^{3} \times {(7 {x}^{3}y) }^{4} = 5 {x}^{5} {y}^{3} \times 2401 {x}^{12} {y}^{4} \\ = 12005 {x}^{17} {y}^{7} [/tex]

Third option is the right answer.

Over a period of 3 hours, 190 leaves fell from a tree. At this rate, about how many leaves fell every hour?

Answers

Answer:

Im pretty sure its 60 leaves per hour.

The circumference of a circle is 64. What is the radius of the circle?

Answers

The radius of the circle would be 10.19 I hope this helped!! :)

Substitute y=-2x+5 into 2y=2x-8 and solve for x
(help me asap please)!!

Answers

Answer:

x = 3

Step-by-step explanation:

2y = 2x - 8

2(-2x + 5) = 2x -8

-4x + 10 = 2x - 8

+4x           +4x

10 = 6x - 8

+8        +8

18 = 6x

divide both sides by 6

x = 3

Hope this Helps!!!

0.110 is _____ than 0.450?

A. less
B. greater
C. equal
D. greatest​

Answers

Less than. big truss, you gotta know that stuff bro
Of course it’s less than bro

PLEASE HELP!!!!!!!

Points A and C are vertices of a cube with a side length of 2 cm, and B is the point of the intersection of the diagonals of one face of the cube, as shown below.

Determine the length of CB.

Answers

9514 1404 393

Answer:

  CB = √6 cm

Step-by-step explanation:

The diagonal of a square is √2 times the edge length, so the length AB will be (1/2)√2(2 cm) = √2 cm.

Then the length CB is given by the Pythagorean theorem as ...

  CB = √(AC^2 +AB^2) = √((2 cm)^2 + (√2 cm)^2) = √(4 +2) cm

  CB = √6 cm

The Perimeter of the scalene triangle is 54.6cm

Which equation can be
used to find the value of b if side a measures 8.7 cm?

a 8.7+b=54.6
b 17.4+ b = 54.6
c 26.1 + b = 54.6
d 34.8+b =54.6

Answers

Answer: B. 17.4+b=54.6

Step-by-step explanation:

Edgen 2023

The equation can be used to find the value of b is 54.6 = 34.8 + b.

We have,

The border of the triangle is54.6 cm

and side a = 8.7 cm,

So, Perimeter = sum of the lengths of the three sides

54.6 = a + 3a + b

54.6 = 4a + b

We know a= 8.7 then

54.6 = 4(8.7) + b

54.6 = 34.8 + b

Therefore, the needed equation is54.6 = 34.8b.

Learn more about Perimeter here:

https://brainly.com/question/7486523

#SPJ6

7. Is the Graph a Function? *

Answers

Answer:

I believe it is a function because there are 2 points passing through the x-axis

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

when you use the vertical line test it goes through only 1 line, so that means it's a function

Algerba 1 (polynomials) plss help

Answers

Answer:

Step-by-step explanation:

the coefficient is the number that is multiplied by x² so is 17

the constant term is the one without any x ( it does not change when x changes) so is -13

day 2 on still being stuck on this... this is due on Friday lol so please help 3

Answers

Answer:

It's 17

Step-by-step explanation:

1.        15 squared is 225

2.       8 squared is 64

3.       225+64=289

4.       find the square root of 289

5.       17 is because when you square 17, you get 289.

P.S mark ar brainliest, rate 5 stars and hit that thanks button.

Which graph represents f(x) and the inverse f^-1(x)

Answers

Answer:

D

Step-by-step explanation:

The inverse or f⁻¹(x) of a function f(x) is the graph being reflected over the line y = x.

For A, f(x) is reflected over the x-axis.

For B, f(x) is rotated about a point.

For C, f(x) reflected over the y-axis.

And for D, f(x) is reflected over the line y = x.

So, the graph that represents f(x) and its inverse f⁻¹(x) is choice D.

Six rolls of fabric are used for making five dresses equally.

How much fabric is used for each dress?

Answers

Answer:

1.2 rolls

Step-by-step explanation:

6 rolls=5 dresses

1.2 rolls             =1 dress

hope i helped:)

5(4x-10)+10x = 4(2x-3)+ 2(x-4)? is equal to - 7/4 or - 1/4 or 3/20 or 3/2 ?

Answers

Answer:

x is equal to 3/2

Step-by-step explanation:

Let's solve it!

5(4x - 10) + 10x = 4(2x - 3) + 2(x - 4)

expand:

20x - 50 + 10x = 8x - 12 + 2x - 8

group like terms:

30x - 50 = 10x - 20

factor out common multiples:

3x - 5 = x - 2

group terms again:

3x - x = -2 + 5

2x = 3

and divide both sides by two:

x = 3/2

Which inequality is true when x=7 ?
A
x + 6 ≥≥ 18
B
x - 6 >> 18
C
11 - x ≤≤ 18
D
11 + x << 18

Answers

The answer is c if x=7

Could someone help me with 7-10
On Match each function with its graph

Answers

Answer:

c

Step-by-step explanation:

Which two operations are needed to wrte the expression that represents Fournes heerence of a number and three? mult cation and subtraction Komision and subtraction Cmu tip cation and addition division and addition​

Answers

Answer:

CMU+the curcumin of three is Fournes

Step-by-step explanation:

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