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3 years ago

A furniture store pays a certain amount for a mattress, called the wholesale price.

Mathematics

1 answer:

nata0808 [166]3 years ago

5 0

Answer:

$1600

Step-by-step explanation:

The $800 that the customer paid is 50% of the retail price, so the retail price is twice that amount:

$800/0.50 = $1600

The selling price of the mattress before the discount was $1600.

Additional comment

The wholesale price was $1600/2.25 = $711.11

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Identify all sets to which the number belongs.

ra1l [238]

Option B

-0.249851765 is a irrational number

<em><u>Solution:</u></em>

Given number is -0.249851765

We have to classify the number

Let us first understand about irrational, real, whole, integer and rational numbers

<h3><u>Integers:</u></h3>

An integer is a whole number (not a fractional number) that can be positive, negative, or zero. Examples of integers are: -5, 1, 5, 8, 97, and 3,043

Every integer can be expressed as a decimal, but most numbers that can be expressed as a decimal are not integers. If all the digits after the decimal point are zeroes, the number is an integer. If there are any non-zero digits after the decimal point, the number is not an integer.

Thus -0.249851765 has non zero digits after decimal point. So it is not a integer

<h3><u>Whole numbers:</u></h3>

Whole numbers are positive numbers, including zero, without any decimal or fractional parts. Negative numbers are not considered "whole numbers."

But the given number -0.249851765 is negative number. So it is not a whole number

<h3><u>Natural numbers:</u></h3>

A natural number is an integer greater than 0. Natural numbers begin at 1 and increment to infinity: 1, 2, 3, 4, 5, etc. Natural numbers are also called "counting numbers" because they are used for counting.

A decimal is a natural number if it is non-negative and the only digits after its decimal points are zero

So the given number -0.249851765 is a negative number and so it is not a natural number

<h3><u>Rational numbers:</u></h3>

A rational number is a number that can be expressed as a fraction (ratio) in the form $\frac{p}{q}$ where p and q are integers and q is not zero.

The rational numbers includes all positive numbers, negative numbers and zero that can be written as a ratio (fraction) of one number over another.

When a rational number fraction is divided to form a decimal value, it becomes a terminating or repeating decimal.

So -0.249851765 is not a rational number

<h3><u>Irrational number:</u></h3>

An irrational number is real number that cannot be expressed as a ratio of two integers.

When an irrational number is expressed in decimal form, it goes on forever without repeating

So the given number -0.249851765 is irrational number

We can conclude that:

-0.249851765 is a irrational number, So Option B is correct

3 0

3 years ago

6 days is what % of 30 days?

Grace [21]

30 divided by 6=5
5 x 6 = 30
%20

8 0

3 years ago

Find the solutions to the system of equations. Select all that apply.

DochEvi [55]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}y=x^2-4&(1)\\y=-2x-5&(2)\end{array}\right\\\\\text{Put (1) to (2):}\\\\x^2-4=-2x-5\qquad\text{add}\ 2x\ \text{and 5 to both sides}\\\\x^2+2x+1=0\\\\x^2+x+x+1=0\\\\x(x+1)+1(x+1)=0\\\\(x+1)(x+1)=0\\\\(x+1)^2=0\iff x+1=0\qquad\text{subtract 1 from both sides}\\\\x=-1\\\\\text{put the value of}\ x\ \text{to}\ (2):\\\\y=-2(-1)-5\\\\y=2-5\\\\y=-3$

6 0

3 years ago

Read 2 more answers

If 123 and x are in proportion find the value of x

Marizza181 [45]

1:2=3:x

1/2=3/x

1×x=3×2

x=6

3 0

3 years ago

His mouth stinging and burning, Virgil hurried to the

ivanzaharov [21]

As his mouth began to sting and burn, Virgil hurried to the kitchen to get some water to wash the dish's acrid taste away.

The correct option D.

<h3>Stinging and burning are described as:</h3>

Nerve problems may be the cause of a burning pain. There are, however, a lot of additional potential causes. It's possible for injuries, infections, and autoimmune conditions to cause nerve damage and, in some cases, nerve pain.

<h3>Is acrid the same as bitter?</h3>

Acrid remarks are extremely bitter or stinging; extremely caustic.

<h3>Which foods have a bitter taste?</h3>

Numerous vegetables in the cruciferous family, such as broccoli, Brussels sprouts, cabbage, kale, radishes, and arugula, have a bitter flavor.

To know more acrid taste visit:

brainly.com/question/3574385

#SPJ4

4 0

2 years ago