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2 years ago

An item costs x dollars and then a 20% discount is applied

Mathematics

1 answer:

Marat540 [252]2 years ago

7 0

Answer:

If an item is x dollars and 20% discount is applied, the new price will be: 0.8x

Step-by-step explanation:

100 - 20%(20) = 80

80 = 80% or 0.8

So, the remaining of the price of x will be 0.8x.

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Help!!! Please 20 points!!

drek231 [11]

Answer:

$12.5 per hour

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3 years ago

Which is closest to the volume of a cylinder with a height of 11 inches and

Veseljchak [2.6K]

Answer:

The closest to the volume of cylinder is 63 in.³.

Step-by-step explanation:

Given:

Cylinder with a height of 11 inches and a circumference of 8 1/2 inches.

Now, to find the volume.

As circumference is given we get the radius by putting formula:

Circumference = 8 1/2 inches = 17/2 inches.

Let the radius be $r.$

$Circumference=2\pi r$

Taking the value of π = 3.14.

$\frac{17}{2}=2\times 3.14\times r$

$8.5=6.28\times r$

Dividing both sides by 6.28 we get:

$1.35=r$

So, radius = 1.35 inches.

Height = 11 inches.

Now, putting the formula to get the volume:

$Volume=\pi r^2h$

$Volume=3.14\times 1.35^2\times 11$

$Volume=3.14\times 1.8225\times 11$

$Volume=3.14\times 20.0475$

$Volume=62.949\ inches^3$

Hence, the volume of cylinder = 63 inches³ (approximately).

Therefore, the closest to the volume of cylinder is 63 in.³.

4 0

3 years ago

Factor the expression below.

Genrish500 [490]

Answer:

A. (6x + 7)(6x - 7)

Step-by-step explanation:

use difference of squares, which says a^2 - b^2 =(a+b)(a-b)

take the square roots of the two numbers, 6x and 7, and use them as a and b

8 0

1 year ago

What is the value of z in the equation 2z + 7 = -5? a. -6 b. -1 c. 1 d. 6

Mekhanik [1.2K]

2z +7 = -5

2z = -5 -7

2z = -12

z= -12 /2

z= -6

4 0

3 years ago

Read 2 more answers

(1.3)Select the correct definition from the dropdown below: (In picture)

masha68 [24]

Answer:

a plane is formed by two rays with the same end point

5 0

3 years ago