What is the solution to the equation 9(w – 4) – 7w = 5(3w - 2)?
34
Ow=-13
Ow=-2
6
Ow= 13
Ow= 26

500 at 40 each = £20000

To make a profit he needs to make more than £20000

20 broke so he sold 500-20 = 480 at 45 each.

480 x 45 = 21600

Profit = 21600 -20000 = 1600

His profit was £1,600

Answer:

Step-by-step explanation: yo también quiero la misma respuesta

Answer:

61.84%

Step-by-step explanation:

Let the cost of the box be x. Since the price of the box and the pen is Rs 80, the pen's price can be represented as 80 - x. The box is sold at a ten percent profit, and an added ten percent is equal to 1.1. Therefore, the price the box sells at is 1.1(x). A 20% loss is the same a keeping 80% or multiplying by 0.8. This means the pen sold at 0.8(80 - x). Now, we are given the box went for Rs 28 more than the pen, so we can create an equation:

1.1x = 0.8(80 - x) + 28

We can simplify and solve:

1.1x = 64 - 0.8x + 28

1.9x = 92

x = 92/1.9

x = 920/19

The cost of the box after the increase would be 1.1(920/19) and the pen would be 0.8(80 - 920/19).

The sum of these two can be written as a percent x of 80.

80x = 0.8(80 - 920/19) + 1.1(920/19)

80x = 64 - 0.8(920/19) + 1.1(920/9)

80x = 64 - 0.3(920/19)

80x = 64 - 276/19

80x = 940/19

x = 940/1520

x = 0.6184

This is 61.84%

Answer:

6 1/2

Step-by-step explanation:

because we know that for 150 students ther are meals for five days right? now their are only a hundred students and 150 meals, we know that 50+50=100 right? so if we have 100 meals for all of the students that will be enough for 5 days but 50 more meals would mean 6 1/2 days cuss only half of the students will have a meal, their would only be 50 meals for 50 students

Answer:

P = 2( 8v +3w)

P = 16v +6w

Step-by-step explanation:

P = 2 ( l+w) for a rectangle

P = 2((3v+7w)+ (5v-4w))

Combine like terms

P = 2( 8v +3w)

Distribute

P = 16v +6w

Step-by-step explanation:

cannot be written as a fraction so its irrational

Answer:

hope it helps you.........

Answer:

correct me if I'm wrong but 40?

Answer:

The $300 charge will last until the new phone is paid off. After that the monthly charge will be $40 only.

The range of the function will be between $40 and $340:

Correct choice is C

Now

[tex]\\ \rm\hookrightarrow \mathbb{R}=(x,y)[/tex]

[tex]\\ \rm\hookrightarrow \mathbb{R}=(40,300)[/tex]

Answer:

(0, - 6 )

Step-by-step explanation:

The midpoint is the average of the x- coordinates and y- coordinates, that is

midpoint = ( [tex]\frac{-3+3}{2}[/tex] , [tex]\frac{-7-5}{2}[/tex] ) = ( [tex]\frac{0}{2}[/tex], [tex]\frac{-12}{2}[/tex] ) = (0, - 6 )

Answer:

1). [tex]x = \frac{8}{7} [/tex]

2). [tex]x = - \frac{45}{2} [/tex]

Step-by-step explanation:

1) [tex]10 - \frac{1}{2} x = 6 + 3x[/tex]

[tex]20 - x = 12 + 6x[/tex]

[tex]20 - x - 6x = 12 + 6x - 6x[/tex]

[tex]20 - x - 6x = 12[/tex]

[tex] - x - 6x = 12 - 20[/tex]

[tex] - 7x = 12 - 20[/tex]

[tex] - 7x = - 8[/tex]

[tex]x = \frac{8}{7} [/tex]

•■•■•■•■•■•■•■•■•

2) [tex]x = - \frac{45}{2} [/tex]

[tex] \frac{1}{2} x - \frac{1}{4} = \frac{3}{5} x + 2[/tex]

[tex]20( \frac{1}{2} x - \frac{1}{4} ) = 20( \frac{3}{5} x + 2)[/tex]

[tex]20 \times \frac{1}{2} x - 20 \times \frac{1}{4} = 20( \frac{3}{5} x + 2)[/tex]

[tex]10x - 20 \times \frac{1}{4} = 20 \times \frac{3}{5} x + 20 \times 2[/tex]

[tex]10x - 5 = 20 \times \frac{3}{5} x + 20 \times 2[/tex]

[tex]10x - 5 = 4 \times 3x + 20 \times 2[/tex]

[tex]10x - 5 = 4 \times 3x + 40[/tex]

[tex]10x - 5 - 12x = 40[/tex]

[tex]10x - 12x = 40 + 5[/tex]

[tex] - 2x = 40 - 5[/tex]

[tex] - 2x = 45[/tex]

[tex]x = - \frac{45}{2} [/tex]

Answer:

True

Step-by-step explanation:

[tex]f(x)=y=-8x+5: exchanging\ x\ and\ y\\\\x=-8y+5\\\\8y=-x+5\\\\f^{-1}(x)=y=\dfrac{-x}{8}+\dfrac{5}{8} =g(x)\\\\\\[/tex]

The two functions are inverses.

Answer:

23×22=506

Step-by-step explanation:

hope this helps

Answer:

Step-by-step explanation:

answer is 2^5

Answer:

225

Step-by-step explanation:

15^2 = 15 * 15 = 225

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

1234 Get On The Dance Floor

158,400 people will fit into an area with a dimension of 30feets by 2 miles.

The area of the street can be calculated thus :

Area = Length × width

Converting the width to feets :

1 mile = 5280 feets

2 miles = x

Cross multiply :

x = 5280 × 2 = 10560 feets

Area = 10560 ft × 30ft = 316800 ft²

Since 15 people fit into an area with dimension which is 6 ft by 6ft

Area = 6 × 6 = 36 ft²

Let x = number of people

15 people = 36 ft²

x people = 316800 ft²

Cross multiply :

x = (316800 × 15) / 36

x = 158,400 people

Hence 158,400 people will fit in.

A similar question can be found here : https://brainly.com/question/13081090

Answer:

609638400

Step-by-step explanation:

Answer:

609638400

Step-by-step explanation:

Each row must alternate boys and girls, so every row is either BGBGB or GBGBG, where B denotes a boy and G denotes a girl. Since there are 8 girls and 7 boys, the teacher must have two rows of GBGBG and one row of BGBGB. There are three ways to choose this row, and once this is done, every seat is reserved for either a girl or a boy. There are 8! ways to arrange the girls in their seats, and 7! ways to arrange the boys, so the total number of seating arrangements is 3 * 7! * 8!

Answer:

1.06 m²

Step-by-step explanation:

To find the area of the two ends, you need to find the area of the inner circle, then subtract that from the area of the large circle.

As we know, A = πr²

The diameter of the larger circle is 1.8, so the radius is 0.9.

π(0.9)² = 2.54

The diameter of the smaller circle is 1.6, so the radius is 0.8

π(0.8)² = 2.01

2.54 - 2.01 = 0.53 m² (this is for one end)

0.53 x 2 = 1.06 m²

Answer:

70 seconds

Step-by-step explanation:

first we'll divide seconds by shirts 28/2 to find out how long it takes to do one shirt. it takes Jonah 14 seconds to do 1 shirt so we can then multiply that by 5 shirts to get 70 seconds

Answer:

Step-by-step explanation:

The catch here is to break up sqrt(6) into 2 parts that use primes to define sqrt(6)

sqrt(3)* sqrt(6)

sqrt(6) can be broken up into sqrt(2*3) which equals sqrt(2)*sqrt(3)

sqrt(3)*sqrt(2)(sqrt(3)

sqrt(3)*sqrt(3)*sqrt(2)

3*sqrt(2)

Answer:

Represents

Step-by-step explanation:

Going over the basic definition of polynomial, an expression which is composed of variables, constants and exponents, that are combined using the mathematical operations such as addition, subtraction, multiplication and division, we can see that the expression is indeed a polynomial.

Answer: 240ft

Step-by-step explanation:

Width:

10(15) + 10

= 150 + 10

= 160

Length:

4(15) + 20

= 60 + 20

= 80

L x W

= 160 + 80

= 240

Answer:

-175/31

Step-by-step explanation:

-301 = -3x = 7(4x – 18)

-301 = -3x = 28x - 126

-301 = 31x = -126

-175 = 31x

x = -175/31

Answer:

-(6y + 2z) - 7z - (12z + 32y)

Step-by-step explanation:

9,875

Answer:

A,B,C

Step-by-step explanation:

Hope this helps

BRAINLIEST

Answer:

2

Step-by-step explanation:

18/(2+7)=18/9=2

Answer:

x = [tex]\frac{40}{9}[/tex] , x = - [tex]\frac{56}{9}[/tex]

Step-by-step explanation:

Given

[tex]\frac{1}{2}[/tex] | [tex]\frac{3}{4}[/tex] x + [tex]\frac{2}{3}[/tex] | - 1 = 1 ( add 1 to both sides )

[tex]\frac{1}{2}[/tex] | [tex]\frac{3}{4}[/tex] x + [tex]\frac{2}{3}[/tex] | = 2 ( divide both sides by [tex]\frac{1}{2}[/tex] )

| [tex]\frac{3}{4}[/tex] x + [tex]\frac{2}{3}[/tex] | = 4

The absolute value always gives a positive result, however, the expression inside can be positive or negative, then

[tex]\frac{3}{4}[/tex] x + [tex]\frac{2}{3}[/tex] = 4 ( multiply through by 12 to clear the fractions )

9x + 8 = 48 ( subtract 8 from both sides )

9x = 40 ( divide both sides by 9 )

x = [tex]\frac{40}{9}[/tex]

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

OR

- ([tex]\frac{3}{4}[/tex] x + [tex]\frac{2}{3}[/tex] ) = 4 , distribute left side

- [tex]\frac{3}{4}[/tex] x - [tex]\frac{2}{3}[/tex] = 4 ( multiply through by 12 to clear the fractions )

- 9x - 8 = 48 ( add 8 to both sides )

- 9x = 56 ( divide both sides by - 9 )

x = [tex]\frac{56}{-9}[/tex] = - [tex]\frac{56}{9}[/tex]

vẽ tam giác ABC biết BC=3cm góc A=35 độ góc B=65 độ

Answer:

92

Step-by-step explanation:

2 [3 (7-5) + 4 (8 + 2)]

= 2 [3 × 2 + 4 × 10)]

= 2 [ 6 + 40 ]

= 2 × 46

= 92

Answer:

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.

Step-by-step explanation:

Answer:

trigonometry is the branch of mathematics that studies the relationship between angles and sides of a triangle.

Hi, I'm happy to help!

First, we need to use two variables. Let's use x and y for this example.

Let's use a Multiplication and Addition operation for our word problem.

Our expression can be something like this.

3x+y

Now, we form this into a word problem.

Joe and Jim are cousins. They are trying to see who can find the most apples. Joe picks x apples. Jim picks 3 times as many as Joe, and picks y extra. How many apples did Jim pick? Write and solve an expression representing the situation. x=10 and y=3

Here's how you would solve:

3x+y

(3×10)+3

30+3

33

Joe picked 33 apples.

I hope this was helpful, keep learning! :D