Shane rare book collection contains 40 books. He donates 20% of his books to the national libary. he sells 1/4 of his books to a rare book dealer. the remaining he sells online. how many books did he sell online? NO LINKS!
A:8
B:10
C:18
D: 22

Answer:

There is no solution to the system in its original form. There are no points in common. If the signs are reversed, the system has an intersection with an infinite number of solutions.

Step-by-step explanation:

Sample Respone from Edge

Answer:

There is no solution to the system in its original form. There are no points in common. If the signs are reversed, the system has an intersection with an infinite number of solutions.

Step-by-step explanation:

It's the sample response :)

Answer:

lazyyyy

Step-by-step explanation:

Answer:

You press the camera icon when asking a question

Step-by-step explanation:

Answer:

39 cm

Step-by-step explanation:

The perimeter of a rectangle is given as 2 (w + l) or 2w + 2l, where w and l are the sides.

Let us use w as 3 cm.

The perimeter of the rectangle is 2(3) + 2l = 6 + 2l

6 + 2l = 84 cm

We move the 6 to the left hand side and it goes from positive to negative.

2l = 84 - 6cm

2l = 78 cm

Divide both sides by 2.

l = 39 cm

There you have the answer for side l.

Hope this helps.

Answer:

7 3/4

Step-by-step explanation:

Answer:

50.24 ÷ number of people

Step-by-step explanation:

When you divide the total cost by the number of people there are, you will get the amount of money each person paid. Hope this helps!

Answer:

38 meters below sea level.

Step-by-step explanation:

if the sub dives 155 BELOW sea level, this equals -155.

then it RISES 117 meters, which equals +117.

we can make this into an  equation

-155+117=-38!

the location of the sub is 38 meters below sea level.

Answer:

find the area of each figure fine your answer on the answer sheet and use

Step-by-step explanation:

fine the area of each figure find the area of each figure

Answer:

(1, -2)

Step-by-step explanation:

multiply each coordinate by 1/4. since the numerator is 1, you really just need to divide each number by 4.

Answer:

the answer is 5

Step-by-step explanation:

do 95 / 19 it will be 5 and do 19 x 5 it will be 95

Answer:

[tex]2x + x + 42 = 90\degree \\ 3x = 48 \\ x = \frac{48}{3} = 16 \\ m \angle1 = 2(16) = 32\degree \\ m\angle2 = 16 + 42 = 58\degree \\ or \\ m\angle2 =90 - m\angle1 =90 - 32 = 58 \degree[/tex]

Answer:

See explanation.

Step-by-step explanation:

0. 333... is 1/3

0.16 is 1/6

0.666... is 2/3

0.83 is 5/6

brainliest please. . .

Answer:

word form: fifty-four and thirty-nine thousandths.

Step-by-step explanation:

hope it helps

mark me brainliest pls

Answer:

x= g+c-y

Step-by-step explanation:

add c to both sides

subtract y to both sides

leaves x all by itself on one side of the equation.

Answer:

the answer to your question is B.4

Answer:

56

Step-by-step explanation:

The probability of selecting a receipt of more than $25 is 0.33.

Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.

For the given situation,

The amount on receipts in $, S= { 15,25,17,23,37,28 }

⇒ [tex]n(s) = 6[/tex]

The amounts are grouped as more than $25 and less than $25.

The event is the amount on receipt more than $25, [tex]e = (28,37)[/tex]

⇒ [tex]n(e)=2[/tex]

The formula to find the probability of an event,

[tex]P(e)=\frac{n(e)}{n(s)}[/tex]

⇒ [tex]P(e)= \frac{2}{6}[/tex]

⇒ [tex]P(e)=\frac{1}{3}[/tex]

⇒ [tex]P(e)=0.33[/tex]

Hence we can conclude that the probability of selecting the receipt of more than $25 is 0.33.

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Answer:

Step-by-step explanation:

D = Donuts

B = Brust cut

P = Profit

B - 12D = $3

12D = $12 a donut, used $3 since it didnt say more than 3.

Plug it in

B - 12(10) = $3

B - 120 = 3

  +120    +120

B= $123

If Brust had 1/4 of the profit, do 4B to find profit

4B = P

4(123) = P

P = $492

Algebros made $492 selling fidget spinners.

The minimum possible profit for Algebros would be $60

An inequality in mathematics compares two values or expressions, showing if one is less than, greater than, or simply not equal to another value. The general equation of a straight line inequality is -

[y] < [m]x + [c]

[y] > [m]x + [c]

[y] ≥ [m]x + [c]

[y] ≤ [m]x + [c]

where -

[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].

[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis.

The equation of a straight line inequality can be also written as -

Ax + By + C > 0

By > - Ax - C

y > (- A/B)x - (C/A)

Given is Brust who took his cut (one-fourth) of the Algebros profit from selling fidget spinners to the store and bought 10 donuts for $12. He came home with more than $3.00.

Assume that Algebros had made $x profit. Then, we can write the  inequality as -

x/4 - 12 > 3

On solving, we get -

x/4 > 15

x > 60

Therefore, the minimum possible profit for Algebros would be $60

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Answer: B

Step-by-step explanation:

Answer:

5.00

Step-by-step explanation:

The direct distance between Buckingham Palace and St. Paul's Cathedral is 5 kilometers.

Given the coordinates of Buckingham Palace as (-2, 2) and St. Paul's Cathedral as (-2, -3).

To find the direct distance between two points on a grid, we can use the distance formula, which is derived from the Pythagorean theorem. The distance formula in a 2-dimensional Cartesian plane is:

Distance = √((x₂ - x₁)² + (y₂ - y₁)²)

We can calculate the distance between them as follows:

x₁ = -2, y₁ = 2 (Coordinates of Buckingham Palace)

x₂ = -2, y₂ = -3 (Coordinates of St. Paul's Cathedral)

Distance = √((-2 - (-2))² + (-3 - 2)²)

= √(0² + (-5)²)

= √(0 + 25)

= √25

= 5 kilometers

So, the distance is 5 kilometers.

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Answer:

Step-by-step explanation:

Write in slope-intercept form,  

y = m x + b .

y = − 13 /5 x − 1 /5

Answer:

A) = 5

B) = 3

C) = [tex]2\sqrt{3}[/tex]

D) = 2.2894

Step-by-step explanation:

A)  [tex]x^2=25[/tex]

[tex]\sqrt{x^2} = \sqrt{25} \\x= 5[/tex]

5*5 = 25

B)  [tex]x^3 = 27[/tex]

[tex]\sqrt[3]{x^3} = \sqrt[3]{27} \\x=3[/tex]

3*3*3 = 27

C)  [tex]x^2 = 12\\[/tex]

[tex]\sqrt{x^2} = \sqrt{12} \\x=2\sqrt{3} \\[/tex]

[tex]2\sqrt{3}[/tex] * [tex]2\sqrt{3}[/tex] = 12

D)  [tex]x^3 = 12[/tex]

[tex]\sqrt[3]{x^3} = \sqrt[3]{12} \\x=2.2894.....\\[/tex]

2.2894 * 2.2894 *2.2894 = 12

No exact solution

Answer: 86

Step-by-step explanation:

Answer:

It will be 86.0 Fahrenheit

Step-by-step explanation:

Answer:The answer to your question is 3. 0

Step-by-step explanation:

Process

1.- Find the cos a

  Opposite side = 5

  Hypotenuse = 13

  Adjacent side = ?

  Adjacent side² = 13² - 5²

                          = 169 - 25

                          = 144

 Adjacent side = 12

cos a = 12/13

2.- Find the sin b

sin b = 5/13

3.- Use the formula below to find sin(a + b)

              sin (a + b) = sina cosb  + sin b cos a

- Substitution

              sin (a + b) = (5/13)((-12/13) + (5/13)/12/13)

- Simplification

              sin (a + b) = -60/169 + 60/13

- Result

              sin(a + b) = 0                        

Step-by-step explanation:

Answer: the total number of pizza crusts made by Pep's Pizza

equals twice the total number of pizza crusts

made by Dianne's Delicatessen when:

+52+%2B+180n+=+2%2A%28+26+%2B+90n+%29+

+52+%2B+180n+=+52+%2B+180n+

This equation is satisfied for any value of +n+,

so Pepe's always makes twice as much as Dianne's

Step-by-step explanation:

Answer:

Step-by-step explanation:

7/16

419

318

1/2

Answer: Distributive Law

Answer:

1. 5

2. 1.29

3. 9.90

Step-by-step explanation:

They are buying 5 of each thing, so multiply it by 5.

The diced tomatoes cost $1.29.

When you solve the equation, you get 9.9. Convert that to money, and you have $9.90

The equation of a line crosses the y-axis at the point (0, 3) and passes through the point (4, 5) is y=1/2 x+2. Therefore, option A is the correct answer.

The general equation of a straight line is y=mx+c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis.

Given that, in the xy-plane, a line crosses the y-axis at the point (0, 3) and passes through the point (4, 5).

We know that, the formula to find the slope of a line is m=(y2-y1)/(x2-x1)

Substitute (x1, y1)= (0, 3) and (x2, y2)= (4, 5) in slope formula, we get

= (5-3)/(4-0)

= 2/4

= 1/2

Now, substitute m=1/2 and (x, y)=(0, 3) in y=mx+c, we get

3=1/2(0)+c

c=3

Put m=1/2 and c=3 in y=mx+c, we get

y=1/2 x+2

The equation of a line crosses the y-axis at the point (0, 3) and passes through the point (4, 5) is y=1/2 x+2. Therefore, option A is the correct answer.

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Answer:

$525

Step-by-step explanation:

To find the commision of the salesman, multiply the (commission rate over 100) by the sale amount.

Commission rate: 5%, so 5/100 = 0.05

then, 0.05*10500 = $525