In June, Mr. Chen's students read 40 books. In July they read 30 books.

What is the percent increase or decrease of the books they read?

Answers

Answer 1

Answer:

25% decrease

Step-by-step explanation:


Related Questions

10x+2y=-30 x and y intercept

Answers

10 is the x intercept and 2 is the y intercept

Tameca already has $55 dollars in her savings account. If she puts $5 per week in her account, write and solve an inequality to find out how many weeks she must save to have at least $100 in her account.

Answers

Answer:

9 weeks

Step-by-step explanation:

5 x 9 = 45

45 + 55 = 100

Answer:

55 + 5x ≥ 100.

5x ≥ 45.

Step-by-step explanation:

write the first equation shown above first, then subtract 55 from 55 and 55 from 100. do not use 0 later on in your equation! 100 - 55 = 45. then write the second equation. after you write the second equation, divide 5 by 5 and 45 by 5. do not use 0 later on in your equation! 45 divided by 5 = 9. she must save for 9 weeks. i hope this works! here is a picture of my work to help you understand it better! <3 it’s kind of blurry, but if you focus enough it’s easier to read.

You had $21 to spend on three pens .After buying them you had $12 how much did each pen cost

Answers

I thinks it’s 3 because 21-12=9 so you spent 9 dollars 9/3=3

this is 8th grade math and i dont understand it

Answers

The answer is W. The y -intercept of a graph is the point where the graph crosses the y -axis.

the 87 person team has 1/2 of a water cooler left, how much should each person get?

Answers

Answer:

0.574%  each

Step-by-step explanation:

1/2 : 87 = 0.00574

0.00574 * 100 = 0.574% each

Please hurry!! (But no rush, thank you)

Answers

Answer:

The answer is d 3 to the power of 108

Answer:

c

Step-by-step explanation:

:) srry if its wrong

Is 2,710,506 divisible by 8? ​

Answers

Answer:

no

Step-by-step explanation:


Exhibits
If the measure of b is 85 degrees, what must be the measure of d? Explain.
Math symbols

Answers

Answer:

d = 95

Step-by-step explanation:

b and d are a linear pair, so the sum of their measures is 180 deg.

b + d + 180

85 + d = 180

d = 95

Answer:

If the measure of b is 85 degrees, what must be the measure of d?

Step-by-step explanation:If the measure of b is 85 degrees, what must be the measure of d?

find the area of the figure above

Answers

Need more information in order to help you!

The area of the shape that is the combination of rectangle and trapezoid will be 71 square inches.

What is the area?

The quantity area demonstrates the amount of a sector on a planar or hemispherical cup. Surface area refers to the area of an open surface or the border of a multi-object, whereas the area of a plane region or plane field refers to the area of a form or planar material.

The shape is a combination of a rectangle and a trapezoid.

The area is the summation of the area of the rectangle and the area of the trapezoid. Then we have

Area = Area of the rectangle + Area of the trapezoid

Area = 5 x 9 + (1/2) x (4 + 9) x 4

Area = 45 + 26

Area = 71 square inches

The area of the shape that is the combination of rectangle and trapezoid will be 71 square inches.

More about the area link is given below.

https://brainly.com/question/27683633

#SPJ2

The missing graph is given below.

Which of the following is an example of a linear equation in slope intercept form?

Answers

a. slope intercept form is y=mx+b so the slope is 4 and y intercept is -5.

which of the four statements are false?

Answers

Answer:

D. all atoms are the same

Even though two atoms are chemically identical and might even chemically react in the same way, they are not completely the same to each other

25. a(b)(-c), for a = 7, b = -2, c = 15​

Answers

Answer:

210

Step-by-step explanation:

a(b)(-c) (PLUG IN THE NUMBERS)

7(-2)(-15) (multiply 7*-2)

-14(-15) (multiply them together two negatives make a positive)

210

Answer:

210

Step-by-step explanation:

plug in what ya know, and it is 7(-2)(15)

7(-2)=-14 and -14(15)=210

You are a contractor and charge $65 for a site visit plus an additional $15 per hour for each hour you spend working at the site. Write and solve an equation to determine how many total hours you have to work to earn $950 working at two separate work sites.

Answers

Answer:

54.6 hours

Step-by-step explanation:

65x2 is 130 130-950 is 820 then 820 divided by 15 is 54.6 therefore meaning you have to work 54.6 hours to get 950$ you can check this by doing 54.6x15+130, might not be exact because i rounded to the nearest tenth.

Hope this helps!

Graph the linear function described by the equation
y = -3x - 2.
Step 1: Identify the slope and y-intercept.
slope =

Answers

The slope of given line is -3 and the y-intercept of the line is -2.

What is Straight Line?

A straight line is an infinite length line that does not have any curves on it. A straight line can be formed between two points also but both the ends extend to infinity.

Here, we know that slope intercept form of straight line;

            y = mx + c

Given equation;

          y = -3x - 2

compare this equation with general equation, we get

    m = -3 and c = -2

Thus, The slope of given line is -3 and the y-intercept of the line is -2.

Learn more about Straight line from:

https://brainly.com/question/27560536

#SPJ1

Answer:

Graph the linear function described by the equation

y=-3x-2

Step 1: Identify the slope and y-intercept.

slope =

Step-by-step explanation:

Learning Task 2.
A. Translate the following verbal sentences to mathematical sentence. Then ex-
press into quadratic equations in terms of "x".
Given
Quadratic Equations
1. The length of a wooden frame is 1 foot
longer than its width and its area is equal
to 12 ft2
2. The length of the floor is 8 m longer than
its width and there is 20 square meters.
3. The length of a plywood is 0.9 m more
than its width and its area is 0.36 m2.
4. The area of rectangle whose length is six
less than twice its width is thirty-six,
5. The width of a rectangular plot is 5 m
less than its length and its area is 84 m2.☹️​

Answers

Answer:

1)[tex]x^2+x-12=0[/tex]

2)[tex]x^2+8x-20=0[/tex]

3)[tex]x^2+0.9x-0.36=0[/tex]

4)[tex]2x^2-6x-36=0[/tex]

5)[tex]x^2-5x-84=0[/tex]

Step-by-step explanation:

1) The length of a wooden frame is 1 foot  longer than its width and its area is equal  to 12 sq. ft.

Let the width be x

We are given that length of a wooden frame is 1 foot  longer than its width

So, Length = x+1

Area of rectangular frame =[tex]Length \times Breadth = x(x+1)[/tex]

ATQ

x(x+1)=12

[tex]x^2+x-12=0[/tex]

2)The length of the floor is 8 m longer than  its width and there is 20 square meters.

Let the width be x

We are given that length of the floor is 8 m longer than  its width

So, Length = x+8

Area of floor= [tex]Length \times Breadth = x(x+8)[/tex]

ATQ

x(x+8)=20

[tex]x^2+8x-20=0[/tex]

3)The length of a plywood is 0.9 m more  than its width and its area is 0.36 m2.

Let the width be x

We are given that length of a plywood is 0.9 m more  than its width

So, Length = x+0.9

Area of plywood=[tex]Length \times Breadth = x(x+0.9)[/tex]

ATQ

x(x+0.9)=0.36

[tex]x^2+0.9x-0.36=0[/tex]

4)The area of rectangle whose length is six  less than twice its width is thirty-six

Let the width be x

We are given that length is six  less than twice its width

So, Length = 2x-6

Area of rectangle = Length \times Breadth = x(2x-6)

ATQ

x(2x-6)=36

[tex]2x^2-6x-36=0[/tex]

5)The width of a rectangular plot is 5 m  less than its length and its area is 84 m2.

Let the length be x

Width = x-5

Area =[tex]Length \times Breadth = x(x-5)[/tex]

ATQ

x(x-5)=84

[tex]x^2-5x-84=0[/tex]

Tabby is building two models of the Eiffel Tower. The scale factor of Model 2 to Model 1 is
is 1
Some of her measurements are shown in the table.
Enter numbers in the boxes to complete the table.
Eiffel Tower
Model 1
Model 2
(feet)
(inches)
(inches)
Height
984
11.808
Width of
328
Base

Answers

Complete question :

Tabby is building two models of the Eiffel Tower. The scale factor of Model 2 to Model 1 is 1/4

____________Eiffel Tower(ft) _ M 1 (in) _M2 (in)

Height _______ 984 ______11.808 ____?

W of base ____ 328 _______? _______?

Answer:

Model 1 :

Width of Base = 328 * 0.012 = 3.936 inch

Model 2 :

Height = 11.808 * 4 = 47.232 inches

Width of base = 4 * 3.936 = 15.744 inches

Step-by-step explanation:

____________Eiffel Tower(ft) _ M 1 (in) _M2 (in)

Height _______ 984 ______11.808 ____?

W of base ____ 328 _______? _______?

Scale factor of Model 2 to Model 1 is 1/4

Model 1 : Model 2

1 : 4

The scale factor of actual tower to model 1

984ft = 11.808 inches

Hence,

1 ft = 11.808 / 984

1 ft = 0.012 inch

Model 1 :

Width of Base = 328 * 0.012 = 3.936 inch

Since ;

Model 1 : Model 2 ; 1 / 4

1 : 4

Model 2 :

Height = 11.808 * 4 = 47.232 inches

Width of base = 4 * 3.936 = 15.744 inches

How many angles are there?

Answers

Answer:

There are 7 angles.

Step-by-step explanation:

A rectangle’s width is 8 inches long. If the length is 3 times the width, what is the perimeter of the rectangle?

Answers

Answer:

the perimeter is 64

Step-by-step explanation:

the length is 24 because 8*3 = 24 and since it is perimeter  of a rectangle there are two sides that are the same length which  is the length are 24+24 and width is 8+8 and all together

24+24+8+8=64

(3,4)(4,-3)(7,4)(3,8)
Is it a function ?

Answers

Answer:

yes

Step-by-step explanation:

What is Addition property of equality
a. If a=b, then a+c=b+C
b. If a=b, then a-c=b-c
c. If a=b, then acaba
d. If a=b, then a/c=b/c

Answers

a b and d

not c

dont put c

Please help ! Simplify the expression below

Answers

the answer should be A

Evaluate the expression 3(7 + 4)2 − 14 ÷ 7.

A 50 HELP PLZ :(
B 361
C 363
D 586

Answers

Are you sure you didn’t miss a sign or anything? Because my calculator is telling me 64, but that’s not an answer choice.

Noah ordered 16 cupcakes and paid $40. Jada ordered 52 cupcakes and paid $104. Did they pay the same rate?

Answers

No

Reason: 40 divided by 16 is 2.5 and 104 divided by 52 is 2, so noah would have paid 5 cents more
no they didn’t,

16 x 2 = 52 cupcakes

$40 x 2 = $80

Jada did NOT pay the same rate, she payed $24 more that Noah

Solve for I.
-9x + 5 < 17 AND 13+ 25 < -1

Answers

Answer:

answer it is 17 for real it is

Write the equation of the line perpendicular to y=4x+2 and passes though the point (1,1). PLZ HURRY!

Answers

Answer: Y= -1/4x + 1 1/4

Step-by-step explanation: Perpendicular means the slope will be negative reciprocals

Which of these is NOT a major organ of the circulatory system?*
O heart
veins
capillaries
O arteries
O lungs

Answers

Answer:

Lungs im pretty sure

Answer:

Lungs are not part of the circulatory system. They're part of the respiratory system

Step-by-step explanation:

Which numbers are a distance of 5 units from 3 on the number line?

Write your answer : ___ and ___

Answers

3 + 5 = 8

3 - 5 = -2

-2 and 8

if 9/24 = 3/x then x is what?

Answers

Answer:

24

Step-by-step explanation:

Answer:

x=8

Hope this helps! Please mark Brainliest!

Identify an obtuse angle in this figure. Use the symbol"<" to name the
angle for full points *

Answers

Answer:

Angles 10 and angles 7 are obtuse angles.

Step-by-step explanation:

Can someone help me find the scale factor and the missing sides please?

Answers

Answer:

x = 6, y = 45

Step-by-step explanation:

[tex]scale \: factor = \frac{13}{32.5} \\ = \frac{2}{5} \\ \\ \frac{x}{15} = \frac{18}{y} = \frac{2}{5} \\ \\ \implies \frac{x}{15} = \frac{2}{5} \\ \\ x = \frac{2 \times 15}{5} \\ \\ x = 6 \\ \\ \frac{18}{y} = \frac{2}{5} \\ \\ y = \frac{5 \times 18}{2} \\ \\ y = 45[/tex]

Other Questions
How did the headlines change as Napoleon got closer to Paris and the seat of government?They were more negative.The tone remained the same.They became more alarmist.They became more flattering. Josie's age is four years greater than doubleMario's age. If Mario's age is n years, which ofthese expressions represents Josie's age?A. 4nB. 4n +2C. 42n + 4D. 2(n +4) In federalist 10, James Madison argued that the new constitution would help control faction by doing which of the following Pls help me with this The cost of what product skyrockets under Louiss miss management of the economy?ill give a brainliesttttt Is the U.S way toooooo easy on drunk driving?Explain? In one or two sentences, explain the difference between connotation and denotation Is numbers 9 and 10 correct ??!! For number 9 I put : -2 For number 10 I put : 5/4, 4/5 , .75, 1.4, -5.8 a) X + 3 = 11 b) m + 5 = -2. c) y 3 = 9d) T 11= -5Help please thank you please help Identify the appropriate reasons for the boycott of the Simon Commission by the Indians from the: a. Simon Commission had only three Indian members. b. Simon Commission had been formed to banish the Indian National Congress. c. Simon Commission did not have a single India member. d. Simon Commission had been formed without taking consent from Indian National Congress. Please hurry.Simplify completely.(2 + 3i)+(-4+1)A. 2+4iB. 6+4iC.-2+2iD. 6+2iE. -2+4i Consider the figure shown Which of the following defines thermal energy? The rational numbers below are arranged in descending order. Select all of the numbers that couldcome next.4393%, 0.7,A.1 x 10-2B.C.65%55D.E.06F.2.3 x 1022. a solid that is formed during a chemical reaction, typically solution . WHOEVER ANSWERS FIRST GETS BRAINLEST!!!!How can you tell that Benjamin Franklins Proposal is a primary source document? g In 2013, the Pew Research Foundation reported that 43% of U.S. adults report that they live with one or more chronic conditions. However, this value was based on a sample, so it may not be a perfect estimate for the population parameter of interest on its own. The study reported a standard error of about 1.7%, and a normal model may reasonably be used in this setting. Create a 95% confidence interval for the proportion of U.S. adults who live with one or more chronic conditions. Report your answer as a percentage rounded to 3 decimal places. We are 95% confident that the true proportion of U.S. adults who live with one or more chronic conditions is between % and % Submit All Parts Question 6 what are the 3 sub particles of an atom Simplify (4v^3)(3v^7) Write something about freedom of expression in relation to fake news in the Philippines mass media.