Mathematics Middle School

18 animals at the city zoo are nocturnal. If these animals 9/100 of all animals at the zoo, how many animals are at the zoo?

Answers

Answer 1

Answer:

200 animals

Step-by-step explanation:

9/100 = 9% or 0.09

18=0.09x

x=200

or you can use proportions:

18/x=9/100

x=200

Answer 2

Answer:

200 animals

Step-by-step explanation:

Related Questions

WILL GIVE BRAINLIEST ANSWER FAST I NEED ASAP!!!!!!!!!!
Select the correct answer.
Which sequence of transformations proves that shape I is similar to shape II?
A. a 90° counterclockwise rotation about the origin, and then a dilation by a scale factor of 2
B. a reflection across the x-axis, and then a dilation by a scale factor of 3
C. a reflection across the x-axis, and then a dilation by a scale factor of 2
D. a 90° counterclockwise rotation about the origin, and then a dilation by a scale factor of 3

Answers

The correct answer is c

Answer: D.

Step-by-step explanation:

A farmer has a total of 7705 corn plants. He wants to plant 40 corn plants in each row. He does the following work in long division

A.The farmer plants 192 rows of corn and has 25 corn plants left over.

B.The farmer plants 25 rows of corn and has 192 corn plants left over

C.The farmer plants 25 rows of corn and has 40 corn plants left over.

D.The farmer plants 40 rows of corn and has 192 corn plants left over.

Answers

A 193.645 cuz u supposed to divide 7705 by 40

Billy is trying to figure out which type of wood to use for building a model boat. He has a block of wood to use with a volume of 8.0 cubic centimeters (cm 3) and a mass of 4.0 grams (g). What is the density of the block of wood? Remember to find the density the equation is d = m/ v.

Answers

Answer:

0.5

Step-by-step explanation:

Remember what the equation states, mass divided by volume equals the density.

Divide -> 4/8

0.5

D=0.5

0.5 lol djdkfjdksjksndmdkdjsndndksndjdbdjdjdkdd

slope and y-intercept from 2 points, I don't know if I am right, can someone plz check and if I am wrong can you plz tell me the answer

Answers

Answer:

you're right

Step-by-step explanation:

Are 4/8 and 24/48 equivalent ratios?

Answers

Answer: Yes

Step-by-step explanation:

24 divided by 4 equals 6 and 48 divided by 8 equals 6 Therefore, 4/8 and 24/48 are equivalent ratios.

Hope I helped : )

Need help please thank you

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Please help me solve these questions.

Answers

Answer:

What are the questions?

Step-by-step explanation:

where’s the question?

Subtract: Four hundred twenty eight from two hundred sixty three.

Answers

165 is the answer to this question .

Please simplify/evaluate 7x - 2x + 30

Answers

Answer:

5x+30

Step-by-step explanation:

7x−2x+30

7x+−2x+30

Combine Like Terms:

7x+−2x+30

(7x+−2x)+(30)

5x+30

Find the unit rate: 340 birds seen in 5 hours

Answers

Answer:

340 / 5 = 68

68 birds per hour

Answer:

You Find 68 birds an hour

Step-by-step explanation:

340 divided by 5

If you were babysitting, would you rather

Charge $5 for the first hour and $8 for each additional hour?
Or

Charge $15 for the first hour and $6 for each additional hour?
Explain your reasoning.

Answers

Answer:

Depends on how long. $8 every additional hour would be the better deal unless you go at or over 6 hours. If you're planning on babysitting for 5 hours or less, go with option A. If 6 hours or more, go with option B.

Answer:

Depends on how long and the child

Step-by-step explanation:

If you're babysitting for like 3 1/2 hours the first option if you're babysitting for longer than the second option and also if the kid is bugging you a lot :/ then the second one because you're working harder and the harder you work the more money you should earn :D

PLS HELP PLS I CANT GET THIS I CANT FAIL PLS

Answers

Answer:

Step-by-step explanation:

Answer:

the answer is

1/2(b-30)

Step-by-step explanation:

1/2b-15=1/2(b-15*2)=1/2(b-30)

4x = 6Y = 2,340 solve for y

Answers

Answer: the slope is -2/3 x intercept is (585,0) y intercept is (0,390)

Step-by-step explanation: Hope That Helps

I only need question E !!! can you guys help me with question E

Answers

Answer:

-10

Step-by-step explanation:

-1 - (-16)
plz find the absolute value of this!

Answers

Answer:

Step-by-step explanation:

the absolute value is always it's distance away from 0 on a number like so -16 is 16 numbers away from 0 so it's 16 the that's the absolute number of digits -16 is away from 0

-1 + 16 = 15 <— like this or like -1 absolute value is -1 which is 1 minus the absolute of -16 which is 16 as in —> 1 - 16 =- -15 and -15 absolute value would be 15

Solve the following inequality then select all answers in the solution set. 8y - 5 < 19

Answers

Answer:

9392

Step-by-step explanation:

HELP FAST WILL GIVE BRAINLIEST AND 5 STARS ALSO 30 POINTS!
Select the correct answer.
Which sequence of transformations proves that shape I is similar to shape II?
A. a 90° counterclockwise rotation about the origin, and then a dilation by a scale factor of 2
B. a reflection across the x-axis, and then a dilation by a scale factor of 3
C. a reflection across the x-axis, and then a dilation by a scale factor of 2
D. a 90° counterclockwise rotation about the origin, and then a dilation by a scale factor of 3

Answers

The answer is A because the diagram shows

pls help im giving brainliest if you can help me

Answers

Answer:

Here it is!!

Step-by-step explanation:

It is the same as you will encounter the same things as u would while adding integers. Negative plus negative would equal negative. etc. It would be different because you need to take the numbers on the right side of the decimal into account. Basically, -2.66 + -2.66 = -5.32

Answer:

Step-by-step explanation:

Well you add them like integers so I guess that kind of the Same thing

One thing different is that they you have to find least common multiple and stuff like that but with a regular integer you just add

what does the word "percent" means? What does per means? and what does cent means?

Answers

Percent means how much of something, for example 3 is 60 percent of 5, per depends on how you use it, and cent is a form of money.

Percent is the amount of something and per means the one like miles per hour and Cent means money like 1 cent

A bookstore is deciding what price it should charge for a certain book. After research, the store finds that if the book's price is p dollars (where p <= 40), then the number of books sold per month is 120-3p. What price should the store charge to maximize its revenue?

Answers

The store charge that has to be charged should be 20$

How to solve for the charge

First we have to solve for revenue

Revenue = Price x quantity

= p * 120-3p

= 120p - 3p²

The maximum revenue is at the point where p = - b/2a

Hence we have

-120/2 *-3

= -120/-6

= $20

Hence the amount that has to be charged by the store should be $20

Answers

Answer: It's B Barcelona which took me forever to find it but it is Barcelona I kept bringing up European so then I had to look up European about it and then it brought up Barcelona.

Step-by-step explanation:

HI future people.

In Mrs. Wilson's math class, the ratio of girls to total students is 5 to 8. If there are 24 total students, how many boys are in the class? (help please! i also need work for understanding this problem, thank you!)

Answers

Answer:

9 boys are in the class

Step-by-step explanation:

5 to 8

5 x 3 = 15 girls

24 - 15 = 9 boys

9 boys in the class

There are 9 boys in the class.

What is Ratio?

A ratio indicates how many times one number contain in another number.

Given that;

In Mrs. Wilson's math class,

The ratio of girls to total students is 5 to 8.

Total student in the class = 24

Now, Let number of girls = 5x

And, Total number of student = 8x

Since, Total student in the class = 24

Hence,

8x = 24

x = 24/8

x = 3

Thus, Number of girls = 5x = 5 × 3 = 15

So, Number of boys = total student - number of girls

= 24 - 15

= 9

Thus, There are 9 boys in the class.

Learn more about the ratio visit:

https://brainly.com/question/25774669

#SPJ2

Michael decided to make French toast. He finds a recipe that calls for the following ingredients:

FRENCH TOAST
8 slices of bread
4 eggs
2 cup of milk
1 teaspoon of cinnamon

Which of the following comparison statements describe how much milk is used for the slices of bread used (There are 2 correct answers)?

1 cup of milk for every 1 slice of bread

2 cup of milk for every 8 slice of bread

4 cups of milk for every 1 slice of bread

1/4 cup of milk for every 1 slices of bread

1 cup of milk for every 1/8 slice of bread

Answers

Answer:

Step-by-step explanation:

Answer:

(I only know one) 2 cups of milk for every 8 slice of bread.

Step-by-step explanation:

Use the table to answer the following question. Which of the following functions represents the sequence in the table?

Answers

Answer:

Step-by-step explanation:

To ship a package, Company 1 charges $10 for the first pound and 0.45 for each additional pound. Company 2 charges $14 for the first pound and 0.30 for each additional pound.

What is the equation for "p", the number of pounds it would take for the cost of the two shipping companies to be the same?

Answers

Answer:

answer is on the bottom

Step-by-step explanation:

Company 1: y=0.45x+10

company 2: y=0.30x+14

To find when they are both the same, put an equal sign and solve:

0.45x+10=0.30x+14

-10 -10

0.45x=0.30x+4

-0.30x -0.30x

0.15x=4

divide by 0.15 on both sides and you got ur answer :) happy to help

the answer is 4 i think it might be wrong but i think it’s 4

Apply the distributive property to factor out the greatest common factor.

81x - 27 = ???

Answers

Answer: 27(3x+1)

Explanation: Factor 27 out of 81x+27.

Answer: 27(3x+1)

Step-by-step explanation:

Nancy's new window curtain is 9 feet 2 inches long. She wants to shorten the curtain to a length of 7 feet 4 inches long. How much of the curtain must she cut away? *

Answers

1 foot 8 inches (I think)

24 inch I think but there you go

In the middle school debate club, 30% of the members are in sixth grade. If there are 12 graders in the club, how many total members are there?

A) 30
B) 36
C) 38
D) 40

Answers

The answer is D because you just multiply the percent times 40 to get 12.

Answer:

Step-by-step explanation:

brian ashely nick austin parker chase gabe liah eathen jazzmin rorger matt THESE ARE ALL THE SIXTH GRADERS

A physical education class is running a mile. The teacher has set a goal of 12 minutes to complete the mile. Students receive a score to show how close they are to the target of 12 minutes. For example, if students run the mile in 8 minutes, their scores will be -4. Complete the statements about the students’ scores.
Anja ran the mile in _______ . Her score is –2.
2
10
12
Issac ran the mile in 13 minutes. His score is______ .
-1
0
1
Simon ran the mile in 12 minutes. His score is______ .
-12
0
12

Answers

Answer:

1(10

2(1

3(0

Step-by-step explanation: purrr

Answer:

1: 10.

2: 1.

3: 0.

identify the rational numbers as positive or negetive -1/-7
identify the rational numbers as positive or negetive +4/-5
identify the rational numbers as positive or negetive +1/-7
identify the rational numbers as positive or negetive +1/+7
identify the rational numbers as positive or negetive -4/-5
identify the rational numbers as positive or negetive -4/+5
identify the rational numbers as positive or negetive -1/+7
identify the rational numbers as positive or negetive +4/+5

Answers

Positive -1/-7

Negative +4/-5

Negative +1/-7

Positive +1/+7

Negative -4/-5

Negative -4/+5

Negative -1/+7

Positive +4/+5

I might be wrong

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