The ratio of the number of adults to the number of children in a library is 12:5. If there are 45 children in the library, how many adults are there at the library?

Answers

Answer 1
The answer would be 108. 108:45 can be simplified to 12:5.
Answer 2

Answer:

The answer is 108.

Step-by-step explanation:

This can be solved with a simple proportion. 5/12 = 45/1. For 5 to become 45, you need to multiply by 9. You do the same to the denominator. 12 times 9 is 108.


Related Questions

Can someone help me please?

Answers

Answer:
X=40

Equation:
24+18+8=50
There’s a right angle so subtract 90 from 50

FAST ANSWER PLZ
Describe a way that you can remember the elements of the reflection matrices if you forget where the 1s, -1s, and 0s belong.

Answers

Answer:

Associate the numbers or coordinates with something in your life. Think of it from every possible aspect. For example, number 7. I just think of it as "7 is half of 14, there are 7 days in a week, 7 can be said as 70, which means 7 tea cups. See like that, now when you try and remember the numbers, you are able to pick up on these trail of thoughts are trace it back to its origin, which here is 7.

Answer:

Multiplying the vertex matrix with the matrix gives us a reflection matrix. The most common matrix reflections are seen as a reflection in the x-axis as well as reflection in the y-axis. It can also be reflected by  90 degrees or by 180 degrees. So, one way to remember the elements is by multiplying the given matrix by a unit matrix. And on the other hand, you can remember the elements remembering by what degree we are reflecting the matrix. This way makes it easier to remember the elements.

Step-by-step explanation:

100% on edge2020

A teacher purchased a 1-foot long sub to share amongst a group of 4 students but decided to eat 1/3 of it. after dividing the rest of the sub into equal parts how much of a sub will each student receive please an answer and a question im confused

Answers

Answer:

2 inches

Step-by-step explanation:

Answer:

2 inches each

Step-by-step explanation:

1 foot = 12 inches

1/3 of 12 =4

left over :12 - 4 = 8

8/4 =2

A cone has a radius of 9 cm and a height of 10 cm . ​The volume of the cone is___ π cm3 .

Answers

The volume of the cone is 848.23π cm3 .

Change the mixed number into an improper faction 6 5/12

Answers

Answer:

77/12

Step-by-step explanation:

Step 1

Multiply the denominator by the whole number

12 × 6 = 72

Step 2

Add the answer from Step 1 to the numerator

72 + 5 = 77

Step 3

Write answer from Step 2 over the denominator

77/12

=12×6+512= 77/12

Answer:

77/12

Step-by-step explanation:

You multiply the whole number by the station's denominator. You will get 72.

Then you add the 72/12 and 5/12 together.

You will get 77/12.

a box is 24cm by 15cm by 10cm. this box will packed with smaller boxes of paper clips which are 6cm by 3cm by 5cm . what is the largest number of boxes of paper clips that will fit in the bigger box?​

Answers

Answer:

40 boxes

Step-by-step explanation:

box = 24 x 15 x 10 = 3600 cm

1 paper clip box = 6 x 3 x 5 = 90 cm

3600/90 = 40

so 40 boxes of paper clips will fit

Answer:

40 boxes

box = 24 x 15 x 10 = 3600 cm

A paper clip box = 6 x 3 x 5 = 90 cm

3600/90 = 40

so 40 boxes of paper clips

Given a = 4, b= -2 and c= 8, evaluate a - b - C.
-14
-6
0-2

Answers

Answer:

[tex]( - 2)[/tex]

Step-by-step explanation:

Given that

[tex]a = 4 \\ b = - 2 \\ c = 8[/tex]

Let's solve now

[tex]a - b - c[/tex]

[tex]4 - ( - 2) - 8 \\ 4 + 2 - 8 \\ 6 - 8 \\ - 2[/tex]

Given

a = 4

b= -2

c= 8

To find out:

Find the value of a - b - c ?

Solution:

a - b - c

Putting the value in the above

4 - ( - 2 ) - 8

4 + 2 - 8 [ - - = + ]

6 - 8

-2

HELP PLEASE!!! I don't have a lot of time, please help!!!

Read the description of f below, and then use the drop-down menus to complete an explanation of why f is or is not a function.

f relates each student in Mr. Well's history class to their score on a final exam.

Answers

Answer:

Step-by-step explanation:

It is a function, since each student gets only one score one final exam,]

Domain is each student,

the first to last

Range is the score each student got:

(however the scoring was made)

f(each student) is a function because each student, or each element of the domain corresponds to the score, one and only one element of the range.

Answer:

The domain of f is 'the students in Mr. Well's history class'

The range of f is 'the final exam scores'

f 'is' a function because each student, or each element of the 'domain', corresponds to 'one' element of the 'range'

I NEED HELP REALLY BAD PLEASE ANSWER THIS QUESTION AS SOON AS POSSIBLE!!!! Which of the following expressions represents the distance between 3/4 and 2
A. 3/4 - 2
B. 2-(-3/4)
C. None Of the above
this is on khan academy and I really need help

Answers

A: 3/4 - 2.

Hope this helped!

Answer:

its A

Step-by-step explanation:

If x = -2, then x2-7x+10 equals
00
O 20
028

Answers

20, you just need to substitute the x value in the equation
(-2)2-7(-2)+10=
=20

Answer:

28

Step-by-step explanation:

x^2-7x+10

Substitute x = -2

(-2)^2 -7(-2) +10

Exponents and multiplication

4 +14+10

Add

28

which of the following describes the number 0.5? A. irrational, terminating decimal
B. Rational, repeating decimal
C. irrational, nonrepeating decimal
D. Rational, terminating decimal

Answers

Answer:

D

Step-by-step explanation:

0.5 can be written as a fraction and 0.5 doesn't repeat

The number 0.5 is rational and terminating decimal thus option (D) is correct.

What is a number system?

The number system is a way to represent or express numbers.

A decimal number is a very common number that we use frequently.

Any of the multiple sets of symbols and the guidelines for utilizing them to represent numbers are included in the Number System.

As per the given number, 0.5

Since 0.5 = 5/10 here 5 and 10 both are integers thus it will be a rational number.

Now, 0.5 here the number after the decimal is only one 5 so it is finite thus it will be terminating decimal.

Hence "The number 0.5 is rational and terminating decimal".

For more about the number system,

https://brainly.com/question/22046046

#SPJ3

the slope of the line below is 2. use the labeled point to find a point-slope equation of the line. (1, 9)

Answers

Answer:

Step-by-step explanation:

y - 9 = 2(x - 1)

y - 9 = 2x - 2

y = 2x + 7

The slope of a line is 2. The y-intercept of the line is –6. Which statements accurately describe how to graph the function? Locate the ordered pair (0, –6). From that point on the graph, move up 2, right 1 to locate the next ordered pair on the line. Draw a line through the two points. Locate the ordered pair (0, –6). From that point on the graph, move up 2, left 1 to locate the next ordered pair on the line. Draw a line through the two points. Locate the ordered pair (–6, 0). From that point on the graph, move up 2, right 1 to locate the next ordered pair on the line. Draw a line through the two points. Locate the ordered pair (–6, 0). From that point on the graph, move up 2, left 1 to locate the next ordered pair on the line. Draw a line through the two points.

Answers

Answer:

Step-by-step explanation:

find the minimum maximum and domain and range of the functions
h(x) = -x² + 4x - 2​

Answers

Domain (-infinity,infinity)

Min(?

max(2,2)

Select the best answer for the question
9. The perimeter of a church window is 80 inches. If the window is in the shape of a square, what is the length of each side of the window?
A. 20 inches
fold
B. 15 inches
C. 60 inches
D. 40 inches

Answers

Answer:

the answer is20 inches

Step-by-step explanation:

a square has 4 sides so you divide the total of 80 by 4.

80÷4=20

What is 30% of 200? Round to the nearest hundredth (if nec
necessary).

Answers

Answer:

60%

Step-by-step explanation:

30/100×200=60%

exactly 60 that's the answer

WILL GIVE BRAINLIEST AND 30 POINTS! Simplify −3 +i over 7 + i . First, multiply both the numerator and denominator by A. -3 + i B. -3 -i C. 7 + i D. 7-1 Hint: C is incorrect.

Answers

You have (-3 +i)/(7 + i) so you need to remove the i from the numerator, so you have to multiply by 7-i and you get

(-22 + 4i)/50 which can be simplified to

(-11 + 2i)/25

Answer:

Step-by-step explanation:

What you are trying to do in this question is get rid of the i in the denominator. To do that you must multiply top and bottom by the conjugate of 7 + i

The conjugate is 7 - i

D if correct if you just made a typo. Otherwise there is no answer.

( - 3 + i ) * (7 - i)

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

(7 + i ) ( 7 - i)

( - 3 + i ) * (7 - i)

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

49 - i^2

( - 3 + i ) * (7 - i)

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

49 + 1

( - 3 + i ) * (7 - i)

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

50

I'll let you work out the numerator. If you get (-2 + i)/5 you are correct.

WILL GIVE BRAINLIEST!! TONS OF POINTS!!
Examine your selected object and the construction you made from 1.08. Which transformations (translations, reflections, or rotations) are present in the construction?

Use complete sentences to describe the transformations present in your construction.
** this should be a well thought out, descriptive, and accurate response.

Answers

Answer:

Step-by-step explanation:

In this this construction reflections is present on the 2 line posts by the side. Why I say this is because the line post on the right reflected or translated to the right. Also the little line in the middle was a rotation and dilation, to stay between the posts. So this is why this stool took a translations, reflections, and rotations.

Hope this helps

Marcus has 2 blue pens, 3 red pens, and a green pen in his backpack. He will pick a pen, give it to a friend, and pick another pen. What is the probability that he picks 2 green pens?​

Answers

Answer:

There is a zero percent chance of him giving his friends two green pens.

Step-by-step explanation:

He only has One pen.

Mark all the statements that are true.

Answers

I Cannot see any statements

Which system of equations best represents the situation below?
A farmer grew his own tomatoes (a), eggplants (b), and potatoes (c). He decided to package his vegetables and price them as follows:
2 tomatoes, 1 eggplant, 3 potatoes for $10
3 tomatoes, 2 eggplants, 4 potatoes for $14
4 tomatoes, 2 eggplants, 6 potatoes for $20

Answers

Answer:

A.

2a +b+3c =10

3a+2b+4c=14

4a+2b+6c=20  

Step-by-step explanation:

Hi, to answer this question we have to write a system of equation with the information given:

The price of each package will be equal to sum of the products of each vegetable (a,b or  c) and their respective amount :

So:

2 tomatoes, 1 eggplant, 3 potatoes for $10

2a +1b+3c =10

3 tomatoes, 2 eggplants, 4 potatoes for $14

3a+2b+4c=14

4 tomatoes, 2 eggplants, 6 potatoes for $20

4a+2b+6c=20

The system is:

2a +b+3c =10

3a+2b+4c=14

4a+2b+6c=20  

(option A)

Feel free to ask for more if needed or if you did not understand something.

Simplify 2x + x. What is the answer to this?

Answers

Answer:

3x

Step-by-step explanation:

2x+x = 3x

Answer:

3x

Step-by-step explanation:

2x + x.

Factor out the x

x(2+1)

x(3)

3x

30 POINTS!!!!Twice the sum of a number and eleven is more than negative two. Boundary point:



Answers

Answer:

2(x + 11) > -2

_________________________________________________________

I feel like we are missing information here, can you comment it down below.

Answer

13

Step-by-step explanation:


Given:
AB || DE
C is the midpoint of BD
Prove:
C is the midpoint of AE​

Answers

Answer:

Step-by-step explanation:

Given: AB║DE and C is the midpoint of BD.

To prove: C is the midpoint of A

                   Statements                       Reasons

1). AB║DE                                   1). Given

2). BC ≅ CD                               2). Point C is the midpoint of BD

3). m∠B ≅ m∠D                         3). Interior alternate angles

4). m∠ACB ≅ m∠DCE               4). Vertical angles

5). ΔABC ≅ ΔDEC                     5). ASA property of congruence

6). AC ≅ EC                               6). ΔABC ≅ ΔDEC

7). AC = [tex]\frac{1}{2}(\text{AE})[/tex]                            7). AC ≅ EC

a pair of shoes is originally priced at 120 It is on sale for 35% off . Find the total percent that you would pay a .35% b.120% c.65% d70%

Answers

Answer:

C

Step-by-step explanation:

Im not exactly sure about this, but i think for the first step, you would do 120*35/100=42 (35/100 is 35%). Then you take 120 and subtract 42, cuz thats how much you took off. 120-42=78. Then, you do 78/120*100 to get the percent you have left. 78/120*100=65%. The simpler way to do it, seeing as there arent mutiple sales on this pair of shoes, is just subtract 35 from 100 to get 65%

Answer:

c: 65% of the answer

Step-by-step explanation:

$120 is 100% we need to find the discount which is 100%-35% = 65%

You will pay now $78 for the shoes.

cross-check 120/100*65 = $78

Jason has two pairs of pants, four shirts, and two pairs of shoes from which to choose to wear to school. How many possible outcomes does Jason have? A. 2 B. 4 C. 8 D. 16

Answers

Answer:

16 as 2 x 4 x 2 = 16

Step-by-step explanation:

just like on a dice we have 2 dice and 36 outcomes we multiply 6 x 6 to find it answers 36.

With Jason's outcomes he has 2 x 4 x 2 = 16

Answer:

16

Step-by-step explanation:

2 pants * 4 shirts * 2 shoes = 16

please mark me brainliest :)

Place the following values in order from least to greatest: 3/4, 0.7, 4/5, 65.5%, 0.72

Answers

Answer:

4/5, 3/4, 0.72, 0.70, %65.5

Step-by-step explanation:

65.5/100=0.655

Choose which one you believe doesn't belong, then explain the reason why you chose your answer above! ( thank you :) )

1. 5, 9, 13, 17, 21...
2. 5, 15, 45, 135, 405...
3. 5, 2, -1, -4, -7...
4. 10, 13, 16, 19, 22...

Answers

Answer:

2

Step-by-step explanation:

1,3,4 are arithmetic sequences

2 is a geometric sequence

Answer:

number 2

Step-by-step explanation:

i think this right.. its just because 45 doesnt come after 15 when counting by 5's.. 20 does :) hope this helps

will mark bianleast plz plz i really need this
Triangle LMN is to be reflected across the x-axis.

What will be the vertices of the reflected triangle?


L'(–2, –1), M'(–3, –5), and N'(–6,–4)

L'(–2, 1), M'(–3, 5), and N'(–6,4)

L'(–1, 2), M'(–5, 3), and N'(–4,6)

L'(2, 1), M'(3, 5), and N'(6,4)

Answers

Answer:

fourth option

Step-by-step explanation:

Under a reflection in the x- axis

a point (x, y ) → (x, - y), thus

L(2, - 1 ) → L'(2, 1 )

M(3, - 5 ) → M'(3, 5 )

N(6, - 4 ) → N'(6, 4 )

Which expression best estimates 6 and three-fourths divided by 1 and two-thirds? 7 divided by 2 6 divided by 1 8 divided by 3 3 divided by 2

Answers

Answer:

[tex]4\frac{1}{20}[/tex]

Step-by-step explanation:

[tex]6\frac{3}{4} \div 1\frac{2}{3}[/tex]

[tex]\frac{27}{4} \div \frac{5}{3}[/tex]

[tex]\frac{27}{4} \times \frac{3}{5}[/tex]

[tex]\frac{27 \times 3}{4 \times 5}[/tex]

[tex]=\frac{81}{20}[/tex]

[tex]=4\frac{1}{20}[/tex]

Answer:

7 divided by 2

Step-by-step explanation:

Other Questions
Please answer this correctly Cecilia makes travel plans for her trip home from Atlantic City to Williamsburg. She plans to make a 2 hour stop in Baltimore. To predict the time of her trip (t) at an average driving speed (s), she uses the equation below: T=2+ 350/s Find the trip times for the average driving speed of 45,55, and 65 miles per hour. Find the area of the figure. If needed, round to the nearest tenth.Isosceles trapezoidAn isosceles trapezoid with bottom base length of 8 feet, top base of 4 feet, and height of 3 feet.a.36 sq. ftb.18 sq. ftc.15 sq. ftd.16 sq. ftPlease select the best answer from the choices provided Find the value of x !!! If someone could do this its be greatly appreciated! A 14.00-g piece of iron absorbs 1000 joules of heat energy, and its temperature changes from 25C to 125C. Calculate the specific heat capacity of iron. You are rolling two dice. When the two numbers (1-6) come up, you multiply the numberstogether. What is the probability of getting a product that is NOT divisible by 2?* Bus A and Bus B leave the bus depot at 6 am.Bus A takes 20 minutes to do its route and bus B takes 35 minutes to complete its route.At what time are they both back at the bus depot together?Give your answer as a 12-hour clock time what does " viceroy" and "legate mean in the Christian world and who do they work for? 2) Find the probability of rolling a 2 or smaller. 1. Describe the main characters and what they seem to want out of life. If you are reading nonfiction, who are the most important people involved in the events of the book, and what do they seem to want? Finally, if the book has no main characters, describe the main forces that are moving the events of the story forward. (any story) 2.5(2z + 5) = 5(z + 2.5) If f(x) = 2x - 3 and g(x) = x^2 + 3, what is f(x) - g(x)? Identify whether the relationship between a and b in the image below is complementary, linear pair/supplementary, or vertical. At soccer practice, Laurel and Erika stook back to back at the center of the field. Erika ran 20 yards south and 13 yards east. Laurel ran 24 yards north and 18 yards west. Once there, Erika kicked a soccer ball in a straight line to Laurel. How far, to the nearest tenth of a yard, did the ball travel to get from Erika to Laurel? Decide if the clause in capital letters is DEPENDENT or INDEPENDENT.WHAT THE MAYOR SAYS is correct.OA.A dependent clauseOB.An independent clause Predict your observation if a magnesium ribbon is put in potassium hydroxide solution and tested with a lighted wooden splinter. Find the ninth term of the geometric sequence a4= -135,r=-3 The nth term of an arithmetic progression is 2n+1 , the sum of 1st n terms of the Arithmetic progression is.. Stephanie uses 4 cups of flour to make 10 tortillas. How many cups of flour will she use to make 25 tortillas?