A cell phone that regular costs $780 is on sale for 15% off. What is the total cost of the phone if you have to pay 5.5% sales tax? Round to the nearest cent.

Answer:

X=7 and y is y=40 length is 47

Step-by-step explanation:

Step-by-step explanation:

the process of finding out the variable value that makes the equation true is called 'solving' the equation. An equation is a statement that two quantities are equivalent. For exp/example:. x + 1 = 4 mean that when we add 1 to the unknown value, 'x', the answer is equal to 4 .

Answer:

Step-by-step explanation:

B

Answer:

10

Step-by-step explanation:

Answer:

Mean = 35

Median = 0.5(n + 1)th term

Median = 0.5(9) = 4.5th term

(30 + 34) /2 = 32

Mode = 30 ( most frequent)

Range = (51 - 20) = 31

Mean = 72

Median = 0.5(n + 1)th term

Median = 0.5(9) = 4.5th term

4th + 5term = (72 + 77) /2 = 74.5

Mode = 72 ( most frequent)

Range = (90 - 48) = 42

Step-by-step explanation:

Given :

1.)

Data: 30 , 40 , 51 , 30 , 34 , 20, 30, 45

Rearranged data : 20, 30, 30, 30, 34, 40, 45, 51

Mean = ΣX / n = 280 / 8

Mean = 35

Median = 0.5(n + 1)th term

Median = 0.5(9) = 4.5th term

(30 + 34) /2 = 32

Mode = 30 ( most frequent)

Range = (51 - 20) = 31

2.)

90 , 72 , 48 , 84 , 77 , 72, 50, 83

Rearranged data : 48, 50, 72, 72, 77, 83, 84, 90

Mean (m) = ΣX / n = 576 / 8

Mean = 72

Median = 0.5(n + 1)th term

Median = 0.5(9) = 4.5th term

4th + 5term = (72 + 77) /2 = 74.5

Mode = 72 ( most frequent)

Range = (90 - 48) = 42

p = 76 a = 330 so your answer is D

The perimeter of the polygon is 76ft and Area is 338 sq.ft, the correct option is A.

A polygon is a closed structure with 3 or more than 3 sides.

The given polygon has 4 sides, so it is a quadrilateral

To find the area of the polygon, it can be divided into a rectangle and a triangle as shown

Area of Rectangle = Length * Width

Area of Triangle = (1/2) * base * height

Area of Rectangle = 15 *18

Area of Rectangle = 270 sq.ft

Area of Triangle = (1/2) * 8 *17

Area of Triangle = 4 * 17

Area of Triangle = 68 sq.ft

Therefore, the total area = 68 +270 = 338 sq.ft.

Perimeter of a polygon is equal to sum of all the sides

= ( 15+18+17+18+8)

= 76 ft.

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Answer: D

Step-by-step explanation:

Answer:

3rd choice

Step-by-step explanation:

the 3rd choice is the same as all of the others just in fraction form .you need to keep fraction form for the statement to still be true

Answer: 1st one

Step-by-step explanation: All you got to think about is think of the fraction if the x value is odd and the y value is odd, when you add them together you will get and odd number. :)

Answer:

‐17

Step-by-step explanation:

given, f(x) = 3x ‐ 5

or, f(‐4) =( 3 × ‐4 ) ‐5

or, f(‐4) = ‐12 ‐5

or, f(‐4) = ‐17

Answer: The correct answer might be 6

Answer:

23.9% = 47400

divide both sides by 23.9 to find 1%

1% = 1983.26359

now multiply by 100 to find total number of doctors

1983.26359 X 100

100% = 198326

Answer: A.x=-9.5

Step-by-step explanation:

-2x-7=12

move the constant to the right

2x-12+7

calculate

2x=19

divide both sides

Answer:

The length of the equal sides is 15 centimeters.

Step-by-step explanation:

Since, base and height of the triangle are perpendicular to each other. In an isosceles triangle, the value of each equal length ([tex]l[/tex]), measured in centimeters, can be determined by the following Pythagorean identity:

[tex]l = \sqrt{\frac{b^{2}}{4}+h^{2}}[/tex] (1)

Where:

[tex]b[/tex] - Base of the triangle, measured in centimeters.

[tex]h[/tex] - Height of the triangle, measured in centimeters.

If we know that [tex]b = 18\,cm[/tex] and [tex]h = 12\,cm[/tex], then the value of each equal length within the isosceles triangle is:

[tex]l =\sqrt{\frac{(18\,cm)^{2}}{4}+(12\,cm)^{2}}[/tex]

[tex]l = 15\,cm[/tex]

The length of the equal sides is 15 centimeters.

Two solutions were found :

1. z = 2

2. z = -1

Step-by-step explanation:

Answer:

6+3b=x

Step-by-step explanation:

The total amount of money spend on crackers and cheese is given by the inequality 3b + 6 ≤ 15

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.

Given data ,

Let the inequality equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

Let the amount spend on cheese be = $ 6

The number of boxes of crackers = b

The cost of one box of crackers = $ 3

So , the total amount for b box of crackers = 3b

The maximum amount of money that can be spend = $ 15

And , total amount of money spend on crackers and cheese is

3b + 6 ≤ 15

Subtracting 6 on both sides , we get

3b ≤ 9

Divide by 3 on both sides , we get

b ≤ 3 boxes

Therefore , the value of b is 3 boxes

Hence , the inequality is 3b + 6 ≤ 15

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The complete question is :

Mari spends $6 on cheese for a party she also plans to buy b boxes of crackers that cost $3 per box.Which inequality shows that Mari wants to spend at most $15 on cheese and crackers for the party?

Answer:

12 cubic ft.

Step-by-step explanation:

A=bh=4(3)=12 ft^3

Answer:

12 ft ^3

Step-by-step explanation:

Volume of the box would be width x length x height

If the box of an area already covers four feet (width times length) we just need to multiply by the height:

4*3 =12 cubic feet

Hope this helps! :)

Answer:

x = 10

Step-by-step explanation:

3x + 14 + 4x + 6 = 90

7x + 20 = 90

90 - 20 = 70

70 / 7 = 10

x = 10

Answer: The total number of student in the school  = 240.

Step-by-step explanation:

Let x be the total number of students in the school.

Given: 35% of the students at Charles drew middle school are 6th graders.

i.e. Number of sixth graders = 35% of x = 0.35x   [35% = 0.35]

Since there are 84 sixth graders in the school,

So  [tex]0.35x=84[/tex]

Divide both sides by 0.35, we get

[tex]x=\dfrac{84}{0.35}=\dfrac{84\times100}{35}=240[/tex]

Hence, the total number of student in the school  = 240.

Answer: 2.45

this is what it is

Answer:

2.54

Step-by-step explanation:

trust me.

Answer:

A

Step-by-step explanation:

4(3)+12=24, which is less than 28, so the inequality would be true

Answer:

The answer is A)3

Step-by-step explanation:

4 multiplied by 3 is 12, 12+12 is 24, less than 28

2 multiplied by 6 is 24+12 is 36, greater than 28

4 multiplied by 7 is 28, already over 28

4 multiplied by 10 is 40 is already way over 28

Hope this helped!!!

Answer:

x=12 but who knows maybe

Step-by-step explanation:

if we are trying to say those lines are equal length than surely the equations must be equal value otherwise they aren't equal so we can probably set them equal to each other and solve for x right? 2x+6=3x-6 subtract 6. 2x=3x-12. subtract 3x. -1x=-12. divide by -1 so x=12.

Answer:

Pic is not working sorry. :(

Step-by-step explanation:

Answer:

Step-by-step explanation:

57cm²

Answer:

ummmmmmmm

Step-by-step explanation:

Answer:

$790.00

Step-by-step explanation:

45+62=107

897-107=790

Answer:

There are 102 children

Step-by-step explanation:

Let us solve the question

∵ There are 272 people in an audience

∴ The total number of people = 272

∵ The ratio of adults to children is 5: 3

→ Find the sum of the two parts of the ratio

∴ The sum of the parts of the ratio = 5 + 3 = 8

→ By using the ratio method

→  Adults:  Children:  People

→  5        :   3            :  8

→  A        :   C           :  272

→ By using the cross multiplication

∵ C × 8 = 3 × 272

∴ 8C = 816

→ Divide both sides by 8

∴ C = 102

∵ C represents the number of children

∴ There are 102 children

the answer is 5x^2-5x-10

Answer:

5x2 - 5x - 10 (IM SORRY IF IM WRONG)

Step-by-step explanation: