In November mr.Lee’s students read 50 books. In December they read 40 books what is the percent increase or decrease in the number of books they read?

Answers

Answer 1

Answer:

percentage decrease,20%

Step-by-step explanation:

50_40 books=,10 bus

10|50 ×100%=20%

Answer 2

Answer:

decrease 20% trust me i got it right

Step-by-step explanation:


Related Questions

Find the x- and y-intercept of the line.

–3x + 5y = 75
a
x-intercept is 5; y-intercept is –3
b
x-intercept is –3; y-intercept is 5
c
x-intercept is –25; y-intercept is 15
d
x-intercept is 15; y-intercept is –25

Answers

Answer:

x intercept-25; y intercept is 15

Miguel places his 13-foot ladder 5 feet from the edge of his house. How high does the ladder reach? A. 8 feet B. 12 feet C. 13.9 feet D. 144 feet E. 194 feet

Answers

Answer:

A - eight feet

Step-by-step explanation:

20 character rule can be dumb sometimes

The Pythagoras is the sum of the square of two sides is equal to the square of the longest side. The height of the house is 12 feet, then the correct option is B.

What is a right-angle triangle?

It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.

Miguel places his 13-foot ladder 5 feet from the edge of his house.

Then the height of the house is given by the Pythagoras theorem.

P² = H² - B²

P² = 13² - 5²

P² = 169 - 25

P² = 144

P = 12

Then the height of the house is 12 feet.

More about the right-angle triangle link is given below.

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Which quadratic is best solved by taking the square root?

Answers

Answer:

x^2 - 9 = 0

Step-by-step explanation:

it is best to use square root method when there is no b value. in this equation, there is no b, only an a and c

The answer is A so the first one

Please help i will mark brainliest which helps gain ranks

Answers

Answer:

It is proportional

Step-by-step explanation:

The pool is being filled at a constant rate.

What is the y-intercept of the equation?

Answers

The y intercept is -4 and the 2/3x is the slope
The y intercept is -4

There are 25 trees on the Jackson’s property. Twenty percent of the trees are oak trees. Which equation can be used to find the number of oak trees on the property?

Answers

Answer:

See below

Step-by-step explanation:

Number of oak trees

[tex] = \frac{25}{100} \times 25 \\ [/tex]

will mark brainliest please help me with

Answers

Answer:

-1

Step-by-step explanation:

i added all of the and that got me the answer

BRAINLIEST PLEASE

Answer:

6x-7

Step-by-step explanation:

Is that the answer you are looking for?

Which points on this vertical number line best represent the locations of 2.5 and minus 3 over 2 ?

Answers

Answer:

ok listen when looking at the graph the answer is easy its b

Step-by-step explanation:

Answer:

it is B

Step-by-step explanation:

because G and K , g is 2.5 and k -3/2

need answers ASAP. ​

Answers

Answer: If you have solved to get x=6 just plug that back into the problem. You get 50

Step-by-step explanation:

Answer:

[tex]x = 6[/tex]

[tex]AB = 50[/tex]

Step-by-step explanation:

Since [tex]B[/tex] is the midpoint of [tex]\overline A \overline C[/tex], [tex]AB[/tex] and [tex]BC[/tex] are equal in length.

[tex]AB=BC[/tex]

[tex]4x+26 = 6x+14[/tex]

[tex]12=2x[/tex]

[tex]x=6[/tex]

To find the length of [tex]AB[/tex], we can use substitution:

[tex]AB=4x+26[/tex]

[tex]=4(6)+26[/tex]

[tex]=50[/tex]

∴[tex]AB = 50[/tex]

Hope this helps

If f(x) = 4x + 1 and g(x) = 2x – 3, then (g(f(x)) =

Answers

Answer g(x)=x2 + 2

Step-by-step explanation:

Algebra 1 Final Exam 2020
A repair bill for your car is $850. The parts cost $325, and the labor cost is $55 per hour. What is the context of the slope?

Answers

stop cheating it’s not good i’m telling your teacher

please please help i’ll give brainliest tysm:))

Answers

Answer:

140

Step-by-step explanation:

Answer:

It would be 140!

Step-by-step explanation:

70% Of 200 = 140!

What is the first step in solving the equation 2/3x+1/3+2=5?
Subtract 3 from each side of the equation.
Add 2 to each side of the equation.
Combine like terms.
Multiply each side of the equation by 5.

Answers

Answer:

use photomath it'll you all

Subtract 3 from each side

1. What is the measure of ∠ABC?

Answers

Answer:

I thought ik but i dont good luck!

Step-by-step explanation:

Answer:

∠ ABC = 55°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ ABD is an exterior angle of the triangle , then

6x + 5 = x + 45 + 3x

6x + 5 = 4x + 45 ( subtract 4x from both sides )

2x + 5 = 45 ( subtract 5 from both sides )

2x = 40 ( divide both sides by 2 )

x = 20

Then

∠ ABD = 6x + 5 = 6(20) + 5 = 120 + 5 = 125°

∠ ABD and ∠ ABC are adjacent angles and are supplementary, thus

∠ ABC = 180° - ∠ ABD = 180° - 125° = 55°

The graph of a proportional relationship is a straight line passing through the?​

Answers

Through the origin (0,0)

Answer:

Origin

Step-by-step explanation:

Here you go~

Question: Find the missing side.​

Answers

Answer:

17

Step-by-step explanation:

Use the Pythagorean Theorem, [tex]a^{2} +b^{2} =c^{2}[/tex]

In this situation, you would use the equation as [tex]8^{2} +15^{2} =x^{2}[/tex]

PLEASE HELP ASAP!!! VERY EASY!

Lucia draws a square and plots the center of the square. She claims that any rotation about the center of the square that is a multiple of 45 will carry the square onto itself

Answers

Answer:

The second lucia’s claim is correct since any rotation that are multiple of 45 carry a square onto itself.

Step-by-step explanation:

Answer:

Lucian claim is incorrect because not all rotations that are multiples of 45 degrees carry a square onto itself

Step-by-step explanation:

90 degrees carries a square into itself and it IS a multiple if 45. But 45 degrees cannot carry a square into itself.

Write the equation of the line perpendicular to y = -5/2x + 1 that passes through the point (-5, -5).

Answers

Answer:

y = 2/5x - 3

Step-by-step explanation:

First, we have to know what the slope is. Being perpendicular to -5/2, the slope becomes 2/5.

Then, you substitute the slope and given point into the equation to find the y-intercept.

y = 2/5x + b

(-5) = 2/5(-5) + b

(-5) = (-2) + b

b = -3

So, the equation is

y = 2/5x - 3

The equation of the line perpendicular to y = -5/2x + 1 that passes through the point (-5, -5) is y = 2/5x - 3.

We have the Equation,

y= -5/2x + 1

Here, the slope is -5/2.

Since perpendicular line have negative reciprocal of the slope of the given line.

So, the slope of the line perpendicular is 2/5.

Using point-slope form of the equation to find the equation of the perpendicular line.

The point-slope form is given by:

y - y1 = m(x - x1)

Using the point (-5, -5) and the slope 2/5,

y - (-5) = 2/5(x - (-5))

y + 5 = 2/5(x + 5)

y + 5 = 2/5x + 2

y = 2/5x - 3

Therefore, the equation of the line perpendicular to y = -5/2x + 1 that passes through the point (-5, -5) is y = 2/5x - 3.

Learn more about Slope here:

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Anyone know how to do this??

Answers

Answer:

no

Step-by-step explanation:

PLS HELPPP I'LL MARK BRAINLEST AND GICE 100 POINTS

Answers

Answer: b

Step-by-step explanation:

what is the missing term in the factorization?
18m^2-200 2(3m-10)(3m+?)
A). -100
B). -10
C). -3
D). 3
E). 10

Answers

Answer:

2 ( 3m -10) (3m+10)

Step-by-step explanation:

18m^2-200

Factor out 2

2 ( 9m^2 -100)

We recognize that this is the difference of squares ( a^2 -b^2) = (a-b)(a+b)

2 ( ( 3m)^2 - 10^2)

2 ( 3m -10) (3m+10)

Evaluate the expression 5a + 12b for a = 5 and b = 12
PLEASE PLEASE help!

Answers

Answer:

I think the answer is 169

The blue dot is at what value on the number line? -10 -4

Answers

Answer:

The blue dot is at the value of -19

Step-by-step explanation:

There is a gap of 3 between each space

 -19    -16   -13    -10   -7    -4

Answer:

-19

Step-by-step explanation:

i did it in khan and it was right

A truck driver earns $21.00 per hour for the first 40 hours worked in one week. The driver earns time-and-a-half, or $31.50, for each hour worked in excess of 40. The piece-wise function below represents the driver wage, w(h), as a function of the hours worked in one week, h. How much money does the truck driver earn in a week if he works 30 hours? *

Answers

Answer:

$21 x 30 = 630 (630 the answer)

Step-by-step explanation:

If the graph of the linear equation ax-8y=15 has an x-intercept at (3,0), then what is the value of a?

Answers

Answer:   a = 5

====================================

Work Shown:

Plug in (x,y) = (3,0)

ax - 8y = 15

a(3) - 8y = 15 .... replace x with 3

3a - 8(0) = 15 ... replace y with 0

3a - 0 = 15

3a = 15

a = 15/3

a = 5

The equation updates to 3x - 8y = 15.

Find the equation of the line that passes through (5, -1) and
(-10, -10)

Answers

Answer:

y = 0.6x – 4  

or

y =   3/5x -4

Step-by-step explanation:

Please help me I don’t get this

Answers

Answer:

16ft.

Step-by-step explanation:

4+6+9=16ft

Note:

hope this helps u out :)

Also please mark brainliest

Question 4 asap thanks

Answers

Answer:

20x+45x+50 = 180

65x= 130

x = 2

so,

A = 20x = 20×2 = 40

hope u got it.

The area of a square depends on the length of its sides. Answer the questions below
regarding the relationship between the area of the square and the length of one side
of the square.

Answers

Answer:

The independent variable, x, represents the length of one side of the square, and the dependent variable is the the area of the square, because the the area of the square depends on the length of one side of the square.

A function relating these variables is D(x) = x^2.

So D(6) =36, meaning if 6 is the length of one side then 36 would be the area of the square.

Step-by-step explanation:

The question clearly stated that the area depends on the side length, making the side length the independent variable.

The formula for the area of a square is the side length squared.

Have a good day :)

The relationship between them is the formula for the area of a square is the side length squared.

What is the area of a square?

The area of a square can be calculated as the square of the sides of a given figure.

The area of a square = side x side

The independent variable x is represents the length of one side of the square, and the dependent variable is the the area of the square, because the the area of the square depends on the length of one side of the square.

A function relating these variables is D(x) = x^2.

D(6) =36, meaning if 6 is the length of one side then 36 would be the area of the square.

It is stated that the area depends on the side length, making the side length the independent variable.

Therefore, The formula for the area of a square is the side length squared.

Learn more about the area;

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Which equation is represented in the graph below?

Answers

? What is the graph?
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