In January Mr.Tan's students read 20 books. In February, they read 15 books. What is the percent increase or decrease in the number of books the read?

Answers

Answer 1

Answer:

there is a 25% decrease in books being read


Related Questions

these two questions are hard for me. please help

Answers

Answer:

first one is second

Step-by-step explanation:

second one is A

Ivan is taking a 179 mile trip by car.If he drives for two hours with an average speed of 65 miles per hour, how many miles will he still need to drive to complete his trip?

Answers

Answer: 40 is the answer

Explanation: He is driving 65 miles an hour so 65+65=130 and you subtract that from 179, so 179-130 and it equals 40

Answer:

you should take notes

Step-by-step explanation:

why you should know this your teacher probally already taught you this already you should go back and take notes = )

Decrease £390 by 10%

Answers

Answer:

the other guy is correct, i think

Step-by-step explanation:

Data were collected regarding the prices plumbers charge for their services in a certain
area. Most of their charges include a flat fee and then an hourly charge. Based on the
data gathered, the amount, A, a plumber charges for t hours of work can be modeled
by the equation A = 50 + 80t. Which statement is correct?

Answers

Using the linear function, it is found that the correct option is given by:

On average, plumbers in the city charge a flat fee of $50, and $80 for each hour they work.

Linear functions modeling a cost have the following format:

[tex]C(t) = C(0) + at[/tex]

In which:

C(0) is the flat fee.a is the cost per unit of time.

In this problem, the cost for t hours of work is modeled by:

[tex]C(t) = 50 + 80t[/tex]

Which means that the correct statement is:

On average, plumbers in the city charge a flat fee of $50, and $80 for each hour they work.

To learn more about linear functions, you can take a look at https://brainly.com/question/16302622

Estimate a 15% tip on a dinner bill of $32.43 by first rounding the bill amount to the nearest ten dollars.

Answers

Answer:

Estimate Tip =  $4.50

Step-by-step explanation:

The bill to the nearest $10  is $30.00 :  ( $ 30 ($32.43) $40, it is nearer to $30

Estimate Tip = Bill rounded to the nearest $10  ×  Tip %

Estimate Tip = $30 × 15%

Estimate Tip = $30 × .15                  (15% change to a decimal is .15)

Estimate Tip = $4.50

17. The sides of a rectangle are in the ratio of 5 : 4. If its perimeter is 144 cm,
then its length is
bi
a) 40 cm
b) 20 cm
c) 30 cm
d) 60 cm
What is the answer

Answers

Answer:

Option A

Step-by-step explanation:

Let,

Length = 5x

Breadth = 4x

Perimeter = 2(l + b)

=> 144 = 2(5x + 4x)

=> 144 = 2(9x)

=> 144 = 18x

=> 144/18 = x

=> 8 = x

Therefore,

Length = 5x = 5(8) = 40 cm

Find the value of two numbers if their sum is 147 and their difference is 51

No links

Answers

Answer:

99 and 48

Step-by-step explanation:

99+48=147

99-48=51

Solve (u+2)^2+6=69 , where u is a real number.

Answers

Answer:

5.94 and -9.94

Explanation:

Use complete the square to answer the question and then type the last line into a calculator to get 5.94 and -9.94

Give a summary of the lesson what you have learned. about EXPONENTS!!​

Answers

The exponent tells us how many times to multiply a base to itself. The base is, of course, the thing that's being multiplied. When we use exponents, we call it "raising to a power". The power equals to the exponent, so in our example, x is raised to a power of 4.


Or u can use this but the first one is better


Learning about exponents helps students think about and understand expressions. ... Identify when two expressions are equivalent (i.e., when the two expressions name the same number regardless of which value is substituted into them).

If similar, state if it’s AA similarity, SSS or SAS similarity

Answers

Answer:

they are not similar

Step-by-step explanation:

MN/VW=16/22=8/11

LN/UW=20/28=5/7

LM/UV=25/35=5/7

there is no information about the angles, you apply SSS but in this situation not all sides are proportional

Tom has a piece of wood that is 10 and 1/3 inches long. He divides the wood into pieces that are 2 and 1/5 inches long. How many pieces will he have?

Answers

I am sorry I needed points


Write the algebraic expression to represent the following:
'Twenty more than twice a number .'

Answers

Answer:

2x + 20

Step-by-step explanation:

20 + 2x

Please graph as this coordinate plane is. Thank you

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Answer:

hope this helps :)

Sixteen is 64% of what number?

A. 12
B. 48
C. 32
D. 25

Answers

Answer:

D. 25

Step-by-step explanation:

16 divided by 64% is 25

Answer:

25

Step-by-step explanation:

Hope I helped you.

good night everyone : )

Answers

Answer:

Good night sagey!!!! sleep well

Define quadrilateral triangle ? Give two examples​

Answers

Answer:

Defination of Quadrilateral Triangle :-

A triangle is a simple closed curve or polygon which is created by three line-segments. On the other hand, in terms of Euclidean plane geometry, a polygon having four edges (or sides) together with four vertices is called a quadrilateral.

Examples of Quadrilateral Triangle :-

A quadrilateral is a closed two-dimensional figure that has 4 sides, 4 angles, and 4 vertices. Examples of quadrilaterals are :- square, rectangle and trapezium.

Step-by-step explanation:

Hope this helps you dear ✌️Carry on learning !!

check attachment for question

Answers

Answer:

[tex]\displaystyle 3x^2 + x[/tex]

Explanation:

All you are doing is combining like-terms:

[tex]\displaystyle \boxed{3x^2 + x} \Rightarrow [5x + x^2 - 1] + [2x^2 - 4x + 1][/tex]

I am joyous to assist you at any time.

The graph represents the money collected at the movie theater on Saturday. Find the domain when the maximum number of people allowed in the movie theater is 50 people.
A. 40 ≤ x ≤ 140
B. 0 ≤ y ≤ 50
C. 40 ≤ y ≤ 140
D. 0 ≤ x ≤ 50

Answers

It is D
You welcome

Help would be appreciated!

Answers

Answer:

Half of AB which is A.F is 14 then the other half is 14 as well which would have a sum of 28, and since CD is congruent to AB that will also have a sum of 28 degrees.

(I don't know how to calculate the perimeter for the second question)

Answer:

Answer: 28

Step-by-step explanation:

A+F=14 * 2 for B and since they are congruent it would be 14*2 so 28.

Kate is 11 45
years old. Karina is 1 16
years younger than Kate and Jane is 1 13
years younger than Karina. How old is Jane?

Answers

Kate-1145
Karina-1029
Jane-916

There are 25 rows of 18 stckers on a sheet. How many stickers are there on a sheet. How many on 40 sheets?

Answers

There are 450 stickers on the sheet

And 18000 on 40 sheets

Hugo is mixing blue paint with red paint to create purple paint.
The ratio of blue to red is 3 to 2.

How many pints of blue paint will he use to create 40 pints of purple paint?

Answers

Answer:

24 pints of blue paint. I don't know of this is a solid way to get the answer, but I added 3+2=5. then 40/5=8. Then multiplied 8*3=24 and 2*8=16

Step-by-step explanation:

(w-10x) (w+10x) Use the Identities to solve this question

Answers

We are provided that –

(w-10x) (w+10x)

Applying identity –

a² - b² = (a + b)(a - b)

[tex]\qquad[/tex] [tex]\twoheadrightarrow\bf(w-10x) (w+10x)[/tex]

[tex]\qquad[/tex] [tex]\twoheadrightarrow\bf w^2 - (10x)^2[/tex]

[tex]\qquad[/tex] [tex]\twoheadrightarrow\bf w^2 -100 x^2[/tex]

Does the data for Amit’s puppy show a function? Why or why not?

Answers

Answer:

no its not a function

Step-by-step explanation:

because the lines on the graph are not equal\in a straight line(the puppy is not gaining the same amount each week)

Hey y’all please help me.

Answers

Answer:

u-3>-6

Step-by-step explanation:

Just ask.

Hope this helps.

At Charlie's Hats, 12% of the 75 hats are baseball caps. How many baseball caps are there?

Answers

da answer is 24 OK understand

can someone help me with this problem!
__ + (4) = -1
whats the missing number
( I swear I'm smart lol)

Answers

-5 I think

Ignore this this is just for 20 words

An equation of a line is y = 3x -7. What would the SLOPE of a line parallel to this equation be?

Answers

Answer:

3

Step-by-step explanation:

If two lines are parallel then their slope is the same

y=mx+b

m= slope

b= y-intercept

your answer would be 3 :) have a good day

Please help me due in 2 mins!!! Use the picture below to help you answer the question!!!

Answers

Answer: 2952 is what they both equal

Step-by-step explanation: 2*(6)4

Define a variable for the number of cars, and define a variable for the number of vans or trucks. You will need to choose x for one and y for the other.

Answers

Answer:

See below!

Step-by-step explanation:

I don't think you included the entire question, but maybe you were just stuck on this part, so I'm happy to help!

You include variables in a math equation to give meaning to a word, phrase, or situation in a shortened way.

For example, if I say, "I run 2 miles every day. How many miles will I run in x days?", your equation should look like this:

miles=2x

Notice that the 2 is a number, because that is the one thing that we know for sure. We know, no matter what, I run 2 miles a day. However, we don't know for how many days. So, for this, we need to put something as a sort of placeholder until we are told how many days.

Variables can be any letter, from A-Z! It is reccomended to stay with letters that avoid s, and i(among others) to make sure that you are using letters that can't be mistaken as letter on accident. For example, s could look like 5. In some cases, i could look like 1.

For your question, you could use:

#of cars=x

#of trucks/vans=y

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