Find the sum of the interior angle measures of a convex 20-gon (a twenty-sided polygon).

Answer:

A and D

Step-by-step explanation:

Answer:

He returned to the scene of the climb

Step-by-step explanation:

Answer:

(342+156)x.5= 420

Step-by-step explanation:

If you simplify the answer will be

2Xy-2xy+4

Answer:

4. t ≥0

5. x>0

6. k ≤ 3

7. r ≥ 2

8. v ≥ 7

Step-by-step explanation:

I hope this helps

Answer: 1&6; 5&2; 3&8; 4&7

Answer:

Speed of priya = 2.2 m/s

Mai was faster.

Step-by-step explanation:

Given:

Mai cover 15 meter in 6 second

Priya cover 22 meter in 10 second

Find:

Who was faster

Speed of priya

Computation:

Speed = Distance / time

Speed of mai = 15 / 6

Speed of mai = 2.5 m/s

Speed of priya = 22 / 10

Speed of priya = 2.2 m/s

Mai was faster.

Answer:

Total cost= $20.9

Step-by-step explanation:

Giving the following information:

Unitary cost= $0.55

Number of chocolate cupcakes= 38

To calculate the total cost of chocolate cupcakes, we need to use the following formula:

Total cost= unitary cost*number of units

Total cost= 0.55*38

Total cost= $20.9

Answer:

4 - w

Step-by-step explanation:

4 - 3w + 2w

First, combine like terms, which is -3w and 2w

4 - 1w

Because -1w is the same as -w, we will write that

4 - w

That is your answer because you cannot simplify this anymore. I hope this answer helps, and if you have any questions feel free to comment!

Answer:

9. y= ¼x -5

10. y= 2x +18

Step-by-step explanation:

Slope-intercept form:

y= mx +c, where m is the slope (also known as gradient) and c is the y-intercept.

9. The given equation is already written in the slope-intercept form. The coefficient of x is ¼, thus the gradient of the given line is ¼.

Parallel lines have the same gradient and hence, gradient of line is also ¼.

Substitute m= ¼ into the equation:

y= ¼x +c

To find the value of c, substitute a pair of coordinates.

When x= 8, y= -3,

-3= ¼(8) +c

-3= 2 +c

c= -3 -2

c= -5

Thus, the equation of the line is y= ¼x -5.

10. Gradient of given line= 2

Parallel lines have the same gradient.

Thus, gradient of line= 2

Substitute m=2 into the equation:

y= 2x +c

When x= -4, y= 10,

10= 2(-4) +c

10= -8 +c

c= 10 +8 (+8 on both sides)

c= 18

Therefore, the equation of the line is y= 2x +18.

Answer:

option a

Step-by-step explanation:

hope this helps

Answer:

C: 2 2/5

Step-by-step explanation:

Took the test and this was the answer

Answer:

Kindly check explanation

Step-by-step explanation:

Given the dimension :

256 cm by 96 cm

To know the largest number of possible squares obtainable, we calculate the Greatest common factor of 256 and 96

256 : 1, 2, 4, 8, 16, 32, 64, 128, 256

96 : 2, 3, 4, 6,, 8, 16, 32, 48, 96

The greatest common factor is 32

Hence, length of side of each square = 32cm

Number of squares obtained :

Area of rectangle :

Length * width

256cm * 96cm 24,576cm²

Area of square :

s² ; s = side length

32² = 1024cm²

Number of squares :

24,576cm² / 1024cm²

= 24 squares

Answer:

$4

Step-by-step explanation:

Tomatos = $2x.

Lettuce = $1.50x

$9.50 = 2x + 1.50.

$8 = 2x.

$4 = x.

Hope this helped.

Answer:

x=3

Let me know if you need an explanation.

Answer:

x = 3

Step-by-step explanation:

Step 1. add 11 to both sides

3x + 4 = 8x - 11

    +11         +11

3x + 15 = 8x

Step 2. subtract 3x from both sides

3x + 15 = 8x

- 3x        -3x

15 = 5x

Step 3. divide by 5 to isolate x

15 = 5x

/5     /5

x = 5

Step-by-step explanation:

Because you're trying to prove the value of X, you work backwards. here's what you do

When working backwards, PEMDAS becomes SADMEP

First, add 14 to 43 (57).

Then, divide 57 by 3 to get 19.

x = 19!

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operation, and equals:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

First, add 14 to both sides of the equation:

3x - 14 (+14) = 43 (+14)

3x = 43 + 14

3x = 57

Next, divide 3 from both sides of the equation:

(3x)/3 = (57)/3

x = 57/3

x = 19

~

Proof: Plug in 19 for x in the equation for x:

3(19) - 14 = 43

First, multiply:

(3 * 19) - 14 = 43

(57) - 14 = 43

Next, subtract:

57 - 14 = 43

43 = 43 (True).

~

translation I should believe

Answer:

3m+2 = 16

Step-by-step explanation:

Answer:

$7.50

Step-by-step explanation:

1 battery costs 10/8=5/4 dollars

(5/4)*6=15/2

15/2=7.50

Answer:

$7.50

Step-by-step explanation:

Set up a proportion and cross multiply to find your answer.

8 batteries/$10 = 6 batteries/$x

x = (6)(10)/8

x = 60/8

x = $7.50

Answer:

y=2x+13

Step-by-step explanation:

parallel lines will have the same slope. Since you still need b you plug in (-4,5) which will look like 5=2(-4)+b. then you solve for b and get 13.

Answer: The grade of the hill = 50%

Step-by-step explanation:

The grade is the slope( expressed as a percent). To evaluate the slope we divide the rise by the run.

Given: A hill on a hiking trail goes up to 69 feet over a distance of 138 feet.

So, rise= 69 feet   , run = 138 feet.

The grade of the hill = [tex]\dfrac{rise}{run}\times100[/tex]

[tex]=\dfrac{69}{138}\times100=50\%[/tex]

Hence, the grade of the hill = 50%

Answer:

28 units^3

Step-by-step explanation:

The formula for finding the volume of a rectangular prism is V = lwh or V = bh

l = length

w = width

h = height

b = base

V = volume

Because we are given the base and height we will use the second formula, V =bh.

V = (8/3)(21/2)

Because we are multiplying fractions, you can just multiply across:

V = 168/6

V = 28 units^3

Step-by-step explanation:

The slope-intercept form is y=mx+b y = m x + b , where m m is the slope and b b is the y-intercept.

Answer:

AC=CE if C is the midpoint if AC & CE are both the same lengths.

Answer:

Easy each basket would have 2 brownies, 5 cookies, and 7 candies which would make 6 baskets.

Step-by-step explanation:

Answer: circle to hearts 24 to 14

Step-by-step explanation:

Answer:

it will be 24:14

Answer:

yes

Step-by-step explanation:

Complete Question

Marissa found a shirt that had a 20% markdown on it if the price of the shirt is represented by x how much does the shirt cost excluding tax select all that apply

select all that apply

A. 0.20x

B.0.80x

C.x-0.20

D.x-0.80x

E.x(0.2+1.00)

F. x(1.00-0.20)

Answer:

B. 0.80x

F. x(1.00-0.20)

Step-by-step explanation:

The Formula for Selling Price when you have percent markdown is;

Selling price = (1 - percentage mark down)× Original price

From the question:

Selling price= Cost of the shirt(excluding tax)

Original price = x

Percentage markdown = 20%

= 0.20

Hence,

Cost of the shirt(excluding tax)

= (1 - 20%)x

= (1 - 0.20)x

= 0.80x

Option B and F is the correct option