Mathematics High School

A teacher knows that 15% of the pencils borrowed by her students are NOT returned. The teacher
has 80 pencils. How many pencils will be returned?

Answers

Answer 1

Answer:

Step-by-step explanation:

80 -15 =65 so she would get 65 pencils back

Answer 2

Answer:

12.

Step-by-step explanation:

15% of 80 is 12.

Related Questions

this is important please help I will give brainiest to people who get both​

Answers

Answer:

First question is A.

Second question is C.

Step-by-step explanation:

First question is correct because non-linear graphs look just like that.

Second question is correct because 2 variables cannot equal the same thing in a function.

GO LOOK AT MY LAST QUESTION PLEASE!!
ITS VERY HARD!!!

Answers

wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink  wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink

HELP HELP! PLEASEEEE​

Answers

Answer: All of the ones with a positive and negative. If it’s positive and positive or negative with a negative put in the equation, it’ll always equal a positive. Hope that helps!

Answer:

-6 * 7

-8 * 8

11 * (-2)

Step-by-step explanation:

Hope this helps :D

How many solutions does
-3n = -10 – 2n have

Answers

Answer:

1 solution

Step-by-step explanation:

Given

- 3n = - 10 - 2n ( add 2n to both sides )

- n = - 10 ( multiply both sides by - 1 )

n = 10

What us the solution to the following equation? 3(7 + 2x) + 3 = 3(5 + x) - 9(x + 1) A. 3/2 B. 2/3 C. -2/3 D. -3/2​

Answers

Answer:

D -3/2

Step-by-step explanation:

Answer:

-3/2

Step-by-step explanation:

3(7+2x)+3=3(5+X)-9(X+1)

open the bracket

21+6x+3=15+3x-9x-9

collect like terms

21+3+9-15=-6x+3x-9x

re-arrange

6x-3x+9x=+15-9-21

12x=-18

X=-18/12

break down Into smallest units

X=-18/12=-9/6=-6/2

X=-3/2

hope the working is right and the answer too!

find the solution to following system using substitution or elimination

y = -x + 10

y = 7x + 2

A. (1,9)

B. ( 3/2 , 17/2)

C. (9,65)

D. (1, -1/7)

Answers

Answer:

the answer is (1,9)

Step-by-step explanation:

The Marked price of an article is rupees 4500. After allowing some percent of discount and levying 10% VAT it is sold at 4400, find discount percentage​

Answers

Answer:

given,

mp= 4500

now

discount amount=dis%of mp

=x%of 4500

=45x

now,

sp=mp- discount

=4500-45x

now,

vat=vat%of SP

=10%*4500-45x

=450-45x

now,

sp with vat=sp+vat amount

=4500-45x+450-45x

=4950-90x

now,

4950-90x=4400

or,-90x=-550

or, x=55/9

or, x=6.11%

therefore, dis percent is 6.11%

9514 1404 393

Answer:

  11.11%

Step-by-step explanation:

Let d represent the discount, as a fraction. Then the final price is ...

  4500(1 -d)(1 +10%) = 4400

  1 -d = 4400/(1.10·4500)

  d = 1 - (4400/4950) = 0.111... ≈ 11.11%

The discount percentage is about 11.11%.

Dr yang buys a violin for £13200 plus vat at 20% dr yang pays a deposit for the violin he then pays the rest of the cost in 12 equal payments of £360 each month find the ratio of the deposit dr yang pays to the total of the 12 equal payments give your answer in its simplest form

Answers

Answer:

8/3

Step-by-step explanation:

Given that:

Cost of violin = 13200 plus VAT at 20%

Cost of violin = (100 + 20)% * 13200

Cost of violin = 1.20 * 13200 = £15,840

Instalment pay = (360 * 12) = 4320

Therefore, deposit made equals ;

Total cost - Instalment pay

£(15,840 - 4320) = £11,520

Hence, ratio of deposit made to the total Instalment payment made ;

£11520 / £4320 = 8 / 3

What is the measure of angle COD?

Answers

Answer:

45°

Step-by-step explanation:

it is 45 degrees

brainliest plzz

what reasons can be used to justify statement 4 in the proof above?

Answers

Answer:

its b

Step-by-step explanation:

i took da test

I WILL GIVE 25 points if you will solve exercise number 22, and i will give the brainliest to the person who will explain the best!!!

Answers

9514 1404 393

Answer:

  C)  78,200

Step-by-step explanation:

If p represents the population in 2010, then the population in 2012 is ...

  p + 0.30p = 1.30p

and the population in 2014 is ...

  (1.30p) + 0.20(1.30p) = (1.30p)(1.20) = 1.56p

This is the same population as in 2015, so we have ...

  1.56p = 122,000

  p = 122,000/1.56 ≈ 78,200 . . . . rounded to hundreds

In 2010, the population of Maple Mall was about 78,200.

Given:

R, S, T are midpoints of , , and .


If the perimeter (distance around) of ABC is 20, then the perimeter of RST is

5
10
15

Answers

Answer:

10 since its half of the original

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
A basketball uniform costs $!6 for the shirt and $13 for the shorts. If the coach needs to buy uniforms for 9 players, use the distributive property

(show work)

Answers

Answer:

$171

Step-by-step explanation:

(6+13)x9=

19x9=

171

Answer:

The answer is X=171

Step-by-step explanation:

9(6+13)=X

you use the distributive property

9x6+9x13=X

then you do

9x6 which is 54

54+9x13=X

then you do 9x13 which is 117

54+117=X

then you add it which equals 171

X=171

Cory is a bird watcher he estimates that 30% of the birds he sees are american robins, 20% are dark eyed juncos and 20% are slnc sparrows. he designs a simulation.

Answers

Answer:

I think C. 0.75

Step-by-step explanation:

The probability of seeing at least one robin in the next 5 birds is 0.75

How to determine the probability?

The representations are given as:

American robins = 0 to 2Dark eye juncos = 3 and 4Song sparrows = 5 and 6Others = 7 to 9

Using the above representations, the numbers that represent an occurrence of seeing at least one robin in the next 5 birds are:

05716 16803 32177 92290 72794 14333 79019 05943 77510 74051 87238 86481 94036 12749 24005

The number of occurrence is:

Number = 15

The number of simulation is 20

So, the probability of seeing at least one robin is:

P = 15/20

Divide

P = 0.75

Hence, the probability of seeing at least one robin is 0.75

Read more about probability at:

https://brainly.com/question/251701

#SPJ5

find the slope of the line y=-1/4x+9

Answers

Answer:

slope = - [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

The equation of a line in slope0 intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - [tex]\frac{1}{4}[/tex] x + 9 ← is in slope- intercept form

with slope m = - [tex]\frac{1}{4}[/tex]

Select all equivalent expressions from the list.

8(7x-6)

•15x-6
•56x-48
•56x-6
•8•7x-8•6

Answers

Answer:

It should be 56x-48 and (8*7)x-(8*6)

Step-by-step explanation:

8. 6 lb 5 oz - 4 lb 12 oz (There are 16 ounces in one pound.) (1 point)
2 lb 7 oz
1 lb 7 oz
1 lb 9 oz

Answers

Answer:

1 lb 9 oz.

Step-by-step explanation:

6 lb 5 oz - 4 lb 12 oz:

It's easier to do this in 2 steps:

6 lb - 4 lb 12oz

= 1 lb 4 oz

Now add 5 oz:

= 1 lb 9 oz.

question of the today for math what is 500+X=234=90

Answers

Answer:

500x = 234 =90

500x = 136

A train leaves the station at time = 0. Traveling at a constant speed, the train travels 330 kilometers in 3 hours. Answers parts a and b. A. Write a function that relates the distance traveled d to time t. The function that relates the distance traveled d to the time is.

Answers

Answer:

The function that relates the distance traveled d to the time t is

f(t) = 110t, where d = f(t)

Step-by-step explanation:

From the question, we were told that the train is At a constant speed, the train travels 330 kilometers in 3 hours

We were told to write function that relates the distance traveled d to the time t, we can do this by writing a linear equation with those functions

Since we are told that the train travels 330 kilometers in 3 hours, then we can say the train travel (330/3) kilometers in 1 hour which means it travel 110 kilometers in 1 hour

Then d= 110t---------------eqn(1)

If if t = 0, then d = 0, as well since at t=0 the train is at the station

At t = 1 then d = 110.

From equation (1) d can be replaced by f(t) then we have

f(t) = 110t----------------eqn(2)

Now we replace d by f (t), because d = f t):

f(t) = 120t

Therefore, The function that relates the distance traveled d to the time is f(t) = 120t

The art club had an election to select a president. 40% of the 85 members of the club voted in the election. How many members voted?

Answers

Answer:

34

Step-by-step explanation:

what number when divided by nine give 12 remainder 11​

Answers

The answer 1.090909090909091

Can someone tell me if it’s a function and explain:)

Answers

Answer:

Step-by-step explanation:

Huh i

Please answer correctly !!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

Answer:

snisisbshdgsbsjsiejbebdbxhhxdyud

Step-by-step explanation:

sorryrydhehsindebbdhddhdb

convert the binary number into decimal =11³​

Answers

010100110011

i hope this was helpful!

help me plsssssssssss agian

Answers

Answer:

B

Step-by-step explanation:

Answer:C

Step-by-step explanation:

I WILL MARK BRAINLIEST

P= a+b+c over 3
solve for c

Answers

Answer:

3p+b+a=c

Step-by-step explanation:

You want to multiply by 3 to get 3p = a+b+c and then you subtract a+b to get 3p+b+a =c

Answer:

BI**H U H*E FK U U DIRTY U PEE UR PANTS LIKE BOY SHUT UPPPP

Step-by-step explanation:

What is the following quotient?

StartFraction StartRoot 96 EndRoot Over StartRoot 8 EndRoot
2 StartRoot 3 EndRoot
4
2 StartRoot 22 EndRoot
12

Answers

9514 1404 393

Answer:

  2√3

Step-by-step explanation:

Maybe you want the quotient ...

  [tex]\dfrac{\sqrt{96}}{\sqrt{8}}=\sqrt{\dfrac{96}{8}}=\sqrt{12}=\sqrt{4\cdot3}=\boxed{2\sqrt{3}}[/tex]

Answer:

the anwser is 2suareroot3 aka A

Step-by-step explanation:

i just got it right on edge! :)

I NEED HELP ASAP! Please

Answers

Answer:

7 1/2

Step-by-step explanation:

8x = 12

divide both sides by 8 to get x alone

this proves that x = 1.5

because 12/8 = 1.5

then

2y + 10 = 22

subtract 10 from both sides : 2y = 12

then divide both sides by 2 to get y alone

y = 6

then

add x and y together : 6 + 1.5 = 7.7 or 7 1/2

Please answer and telll me why no pog explanation please

Answers

Answer: D

Step-by-step explanation:

YZ ∥ VX . Find WX. 34 16 8 Y Z W X V WX =

Answers

Answer:

this really doesnt make sense sorrry

Step-by-step explanation:

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