The volume of a fish tank is 40 cubic feet. If the density is 0.4, how many fish are in the tank?

Answers

Answer 1

Answer:

16 fish

Step-by-step explanation:


Related Questions

What is the percent change from 9,000 to 900?

Answers

Answer:

-90%

Step-by-step explanation:

Change/ original x 100

9000-900= 8100

8100/9000= 0.9

0.9 x 100 = 90

I WILL MARK YOU BRAINLIEST PLEASE HELP. It needs to be correct

Answers

Answer:

a) Center of dilation (0,0)

b) Scale factor = 2

Step-by-step explanation:

Dilation of Polygons

The triangle ABC has its vertices at A(-2,2), B(4,2), and C(-2,-2).

The triangle A'B'C' has its vertices at A'(-4,4), B'(8,4), and C'(-4,-4).

Since A'B'C' is a dilation of ABC, we check if all its vertices are proportional with the same scaling factor.

Both vertices of A' are twice the vertices of A: (-4,4)=2*(-2,2)

Both vertices of B' are twice the vertices of B: (8,4)=2*(4,2)

Both vertices of C' are twice the vertices of C: (-4,.4)=2*(-2,-2)

a)

The proportionality of the coordinates of the vertices tells us the center of dilation must be the origin of coordinates (0,0).

b)

The scale factor is the constant number all the vertices are multiplied by, that is, scale factor = 2

15.5 divided by 33.17

Answers

Answer: 15.5 divided by 33.17  would be 0.46728972

Make sure you put your decimal point

How to do this question plz answer ​

Answers

Answer:

a. 9 sides

b. 18 sides

c. 24 sides

d. 30 sides

Step-by-step explanation:

We can use the equation 180(n-2), which n is the number of sides to find the answer.

a. 180(n-2)=1260

n-2=7

n=9

b. 180(n-2)=2880

n-2=16

n=18

c. 180(n-2)=3960

n-2=22

n=24

d. 180(n-2)=5040

n-2=28

n=30

Answer:

a) 9 sides

b) 18 sides

c) 24 sides

d) 30 sides

Step-by-step explanation:

sum of interior angles = (n - 2) * 180

where n is the number of sides

a) 1260

(n - 2) * 180 = 1260

(n - 2) = 1260/180

(n - 2) = 7

n = 7 + 2

n =  9

b) 2880

(n - 2) * 180 = 2880

(n - 2) = 2880/180

(n - 2) = 16

n = 16 + 2

n =  18

c) 3960

(n - 2) * 180 = 3960

(n - 2) = 3960/180

(n - 2) = 22

n = 22 + 2

n = 24

d) 5040

(n - 2) * 180 = 5040

(n - 2) = 5040/180

(n - 2) = 28

n = 28 + 2

n = 30

A student club started a fundraising effort to support animal rescue organizations. The club sent an information flyer home to the rt students in the school. It says, "We welcome donations of any amount, including any change you could spare!" Their goal is to raise T' dollars, and to donate to a cat shelter and a dog shelter, On the next page, match cach quantity to an expression, an equation, or an inequality that describes it The dollar amount the club would have if they reached one-fourth of their goal. The dollar amount the club would have revery student at the school donated a quarter to the cause. The dollar amount the club could donate to the cat shelter if they reached their goal and gave a quarter of the total donation to a dog shelter. The dollar amount the club would still need to raise to reach its goal after every student at the school donated a quarter. The dollar amount the club would have all three-fourths of the students at the school each gave 50 cents 3​

Answers

Answer:

1. 0.25T

2. 0.25n

3. T - 0.25T

4. T - 0.25n

5. 0.75n × 0.5

Step-by-step explanation:

1. The dollar amount the club would have if they reached one-fourth of their goal.

Since the goal is to raise T dollars

One-fourth of T = ¼ × T = 0.25T

2. The dollar amount the club would have if every student at the school donated a quarter to the cause.

Let the number of students in the school be n

Since there are n students in the school, amount raised = ¼ × n = 0.25n

3. The dollar amount the club could donate to the cat shelter if they reached their goal and gave a quarter of the total donation to a dog shelter.

Since they reached their goal, the total amount they raised= T dollars

They gave a quarter of the total donation to a dog shelter = ¼T = 0.25T

Amount left to donate to the cat shelter =  T - 0.25T

4. The dollar amount the club would still need to raise to reach its goal after every student at the school donated a quarter.

Amount donated if every student donated a quarter = ¼n = 0.25n

Amount still needed = T - 0.25n

5. The dollar amount the club would have if three-fourths of the students at the school each gave 50 cents

Three-fourths of the students = ¾n = 0.75n

50 cents = 0.5 dollars

Amount raised if three-fourths of the students gave 50 cents = 0.75n × 0.5

helppp messsss please

Answers

The answer is the first one
Comment if you need a better explanation :)
The first answer is correct

Brielle's piggy bank has all nickels and dimes. The total value of the money in her piggy bank is
$7.80. If Brielle has 66 nickels, write and solve a linear equation to find the number of dimes she
has.
What’s the linear equation

Answers

Answer:

Step-by-step explanation:

7.80=66(.05)+.10(x)

7.80=3.30+.10(x)

7.80=3.30+.10x

4.50=.10x

x=45

Check

66 nickels at .05=3.30

45 dimes at .10= 4.50

3.30+4.50= 7.80

A dilation with a center at
P
(
0
,
0
)
P(0,0) and a scale factor
k
k is applied to
M
N

MN
. Let
M

N


M

N


represent the image of
M
N

MN
after the dilation.
​Select each correct statement.

Answers

Answer:

bro I didnt understand your question can u resend it

What is the slope of the line through (-1, 4) and (1,-2)? ​

Answers

Answer:

-3

Step-by-step explanation:

The rise is 6 and the run is 2

evaluate the expression 8/d + 3 when d=4

Answers

Answer: 5,

Step-by-step explanation: I got it right, and I hope this helps you! ✨

Answer:

the evaluation of the equation is 5

Step-by-step explanation:

To add fractions, find the LCD and then combine.

Anyone willing to help? Surprise included

Answers

Answer:

An arithmetic sequence has a constant difference between each term.

For example: 2,4,6,8,10,12,…

We can see clearly that all the terms differ by +2.

We call this the common difference, d.

A geometric sequence has a constant ratio (multiplier) between each term.

An example is: 2,4,8,16,32,…

So to find the next term in the sequence we would multiply the previous term by 2.

This is called the common ratio, r.

These sequences are closely related as they both have the same first term, but I hope you can see how different they become if they have a common difference or a common ratio.

We can create a decreasing arithmetic sequence by choosing a negative common difference.

Similarly, a decreasing geometric sequence would have a common ratio of less than 1.

Step-by-step explanation:

Can someone explain how to solve this?

Answers

Answer:

here you go. hope this helps!

hiii so my parents just finally agreed to let me get a puppy so could you list some boy and girl name ideas? tyyyy
pls say at least 3

Answers

Answer:

abby

frisk

mimi

Step-by-step explanation:

Answer:

Mochi, Athena, and Oreo ^^

Step-by-step explanation:

Congrats! :D

Find two numbers with a sum of 16 and a difference of 4.​

Answers

Answer:

10 and 6

Step-by-step explanation:

Variable equation:

x+y=16

x-y=4

Substitution: eq1-eq2.

2y=12

y=6

x=10.

Hope this helps :D

Step-by-step explanation:

Let the numbers are x and y

[tex]\longrightarrow\sf x+y=16 [/tex]

[tex]\longrightarrow\sf x-y=4[/tex]

add them

[tex]\longrightarrow\sf 2x=20 [/tex]

[tex]\longrightarrow\sf x=10[/tex]

Substitute the value in eq (1)

[tex]\longrightarrow\sf 10+y=16 [/tex]

[tex]\longrightarrow\sf y=6 [/tex]

numbers are 6 and 10

(Riddle #1 ) BRAINLIEST! I hope you are all having a wonderful day and Happy Thanksgiving (if you celebrate thanksgiving)! I will be asking some riddles, if your answer if correct I will mark your answer as brainsliest :D Please don't Google or search up any of the riddles, I want everyone to have a fair chance to win the brainliest, thank you.

Riddle #1
What will happen if an unstopable force meets an immovable object?

Answers

Answer:

The "paradox" is flawed because if there exists an unstoppable force, it follows logically that there cannot be any such thing as an immovable object and vice versa.

Step-by-step explanation:

:>

Answer:

nothing happens

Step-by-step explanation:

probably incorrect :0

pls help on these two math questions ill give brainlyest to first correct answer

Answers

Answer:

#1: Dillon, Harry, Paul, Winston #2: B

Step-by-step explanation:

#1: Absolute value is the opposite of the negative number, so it's just 2, 8, 10, and 13.

#2: Count by 10's, it's on the 50 line

Answer:

1)Dillon, Harry, Paul and Winston

2) C

There are 5 less oranges on the tree today than there was yesterday

Plz help

Answers

that’s all ? is there like no other explanation to make it understood better ?

The no. of apples on the tree today

= The no. of apples on the tree yesterday - 5

Let us take 'the no. of apples on the tree today' as 'x'

and 'the no. of apples on the tree today' as 'y'

Therefore, x = y - 5

Hope this is the thing u are looking for

Please help with this, all I need is for this paper to be done and then I’ll have a good grade in algebra

Answers

Answer:

use desmos.

Step-by-step explanation:

demos. All you have to do is out the equation into Desmos and it will graph it for you. You can look and learn.

i need the answers for the seven angels​

Answers

Answer:

<1=83

<2=97

<3= 83 (given)

<4=97

<5=83

<6=97

<7=83

<8=97

Step-by-step explanation:

They give you the angle for 3 which is 83, so from there all you have to do is find the equivalent angles which are angle 1,5,7. Then for angles 2,4,6,8 you subtract 83 from 180 and you get 97.

you have 50$ and want to buy some shoes that cost $45. the tax rate for the shoes is 7%. do you have enough money to buy the shoes?

Please answer questions answer don't write a random word I will report and get banned from the site

Answers

Answer:

Yes, you have enought money

Step-by-step explanation:

45 times 107% (100 for the total cost and and 7 for the tax) is equal to 48.15. You have 50 dollars, therefore you can buy your shoes.

For any linear function f(x) = mx + b, when does 5f(x) = f(5x) + 5? A. when b = 0 B. when b = 54 C. when b = 5 D. always

Answers

Answer:

b = 5/4

Step-by-step explanation:

Equations

Given the function:

[tex]f(x)=mx+b[/tex]

It's required to find the value of b such that:

[tex]5f(x)=f(5x)+5[/tex]

Substituting:

[tex]5(mx+b)=5mx+b+5[/tex]

Operating:

[tex]5mx+5b=5mx+b+5[/tex]

Simplifying:

[tex]5b=b+5[/tex]

Subtracting b:

[tex]4b = 5[/tex]

Dividing by 4:

b = 5/4

Jenna took a math test and answered 15 out of 20 answers correctly. What percent of the questions did she answer correctly?

Answers

Answer:

75%

Step-by-step explanation:

Answer:

75%

Step-by-step explanation:

15   x  5           75

----      =          -------

20  x  5           100

Cent means 100, so percent literally means per 100 like in century or centennial. So, I put it into a fraction over 100. Now it is 75 per 100. If you remember, per 100 is percent, it means the answer id 75 percent. You can also write it as 75%.

Melanie rides her bike. The circumference of her bike tire is 2.8 m, and the tire revolves 1.5 times per second. What is the distance Melanie rides in 100 seconds?

Answers

Answer:

420 m

Step-by-step explanation:

The distance travelled in 1 second:

2.8 m * 1.5 revolves

= 2.8 * 1.5

= 4.2 m

Distance travelled in 100 seconds:

4.2 m * 100

= 420 m

Hope this helped!

Show work thanks please help me

Answers

Answer:

∠ JKL = 32°

Step-by-step explanation:

Since KN bisects ∠ LKM , then

∠ LKN = ∠ NKM = 35°

Thus

∠ JKL = ∠ JKM - ∠ LKN - ∠ NKM

         = 102° - 35° - 35°

        = 102° - 70°

         = 32°

PLEASE PLEASE HELP.

Answers

Answer:

120 square feet

Step-by-step explanation:

they are similar so they are in a ratio 20/10=2 so smaller triangle is twice the larger one 6×2=12ft

area of triangle =1/2×base×height

=1/2×20×12

=120 square feet

Express the following ratios in simplest form: 20:40

Answers

Answer:

1:2

Step-by-step explanation:

By dividing both sides by 20 you will get 1:2 which is the same thing as 20:40 if you multiply 1:2 on both sides by 20

Answer:

1 : 2

Step-by-step explanation:

20 : 40

20/10 : 4/10

2 : 4

2/2 : 4/2

1 : 2

The ground temperature at an airport is 14 °C. The temperature decreases by 5.4 °C for every increase of 1 kilometer above the ground. What is the temperature outside a plane flying at an altitude of 5 kilometers? The temperature outside a plane flying at an altitude of 5 kilometers is °C.

Answers

Answer:

-13 celsius

Step-by-step explanation:

5.4 * 5 = 27 degrees drop

14-27= -13

YOU GET BRAINLIEST IF CORRECT!!!!!

Answers

It's really easy to solve this problem all you have to do is long division with 4,274 and 51.

4,274 divided by 51 is = to 83 but it still has decimals leftovers meaning there would be a remainder and since we already found out 81 is part of the answer we know it won't be 91 and it has to be 83 with a remainder!

It’s 83 that’s the answer

Which angles are adjacent angles?

Answers

Answer:

<stv and <stq

Step-by-step explanation:

adjacent angles have the same vertex and are side by side.

Solve the equation below for : y.6x – 3y = 36

A. y = 2x – 12
B. y = 12 - 2x
C.y = 1/2 x + 6
D. y= 6 - 2x

Answers

Hi there! :)

[tex]\large\boxed{A. \text{ } y = 2x - 12}[/tex]

6x - 3y = 36

Solve for y:

begin isolating by subtracting both sides by 6x:

6x - 6x - 3y = 36 - 6x

-3y = 36 - 6x

Divide both sides by -3 to solve for y:

(-3y) / (-3) = (36 - 6x)/ (-3)

y = -12 + 2x

Rearrange:

y = 2x - 12, or choice A.

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