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There are five correct!

Answer: 15 pumps

More the number of pumps lesser is the time taken to fill the tank

Number of pumps ∝ 1/Time

n = k / t

[where k = constant]

In 1st case

5 = k / (1.5)

k = 7.5

In second case

n = k / t

= 7.5 / 0.5

= 15

∴ 15 pumps are used to fill the empty tank in half an hour.

Step-by-step explanation:

similR triangles

so

x/(x+16) = 20/32= 5/8

8x = 5x+80

3x = 80

x = 80/3

Answer:

c

Step-by-step explanation:

Answer:

Checking account

Step-by-step explanation:

pls give me brainlest <3

The probability that Nadia randomly picks up a reference book and then, without replacing it, picks up a nonfiction book is 5/136.

We have,17 total number books out of which,10 are fiction books, 2 are reference books, 5 are non-fiction books.

The combination is the number of ways of selecting things.

Probability is to quantify the possibilities.

Number of ways in which a reference book can be picked = ²C₁

Probability of picking a reference book = ²C₁ / ¹⁷C₁ = 2/17

Now, the total number of books left on the bookshelf is 16

The number of ways in which a non-fiction book can be picked after a reference book is already picked up( no replacement) = ⁵C₁ / ¹⁶C₁ = 5/16

Total probability =multiplication of both the possibilities

Total probability =(2/17)×(5/16) = 5/136

Therefore, the probability that she randomly picks up a reference book and then, without replacing it, picks up a nonfiction book is 5/136

To get more about probability refer to the link,

https://brainly.com/question/25870256

Answer:

C. 5/156

Step-by-step explanation:

Edge 2023

The statement that best describes the association between variable X and Y is perfect positive association.

This is a term that is used in statistics to refer to the fact that a 100 percent of the time, the variables X and Y are moving together in the same direction and in the same exact direction.

From the image here, the Variables X and Y have a straight line relationship showing that they are moving together.

Read more on variables here: https://brainly.com/question/23931018

A perfectly positive correlation means that 100% of the time, the variables in question move together by the exact same percentage and direction

Answer:

2x2+10x+3/x+4

Step-by-step explanation:

4x2+20x+6 / 2x+8 = 4x2+20x+6/2x+8

Answer:

The answer is

Step-by-step explanation:

Similar : 2yd - 8yd, 6yd - 18yd

Not similar - Shape : 18yd - 6yd

Not similar - Ratio : 6yd - 3yd, 9yd - 18yd, 3yd - 1yd

(C) jasmyne is the one with the proportinal relationship

Answer:

What is the slope of the line?

-3x+5y=2x+3y

-3x+5y=2x+3y → 2y = 5x → y = (5/2)x.

There are infinitely many ordered pairs that satisfy -3x+5y=2x+3y.

Step-by-step explanation:

✨ BRAINLY FAST ✨

✨BY#NICHOLE✨

[tex](\stackrel{x_1}{1}~,~\stackrel{y_1}{-6})\qquad (\stackrel{x_2}{-2}~,~\stackrel{y_2}{-8}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-8}-\stackrel{y1}{(-6)}}}{\underset{run} {\underset{x_2}{-2}-\underset{x_1}{1}}}\implies \cfrac{-8+6}{-3}\implies \cfrac{-2}{-3}\cfrac{2}{3}[/tex]

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-6)}=\stackrel{m}{\cfrac{2}{3}}(x-\stackrel{x_1}{1})\implies y+6=\cfrac{2}{3}x-\cfrac{2}{3}[/tex]

hmmm now let's put that in standard form, that is

standard form for a linear equation means

• all coefficients must be integers, no fractions

• only the constant on the right-hand-side

• all variables on the left-hand-side, sorted

• "x" must not have a negative coefficient

[tex]\stackrel{\textit{multiplying both sides by }\stackrel{LCD}{3}}{3(y+6)~~ = ~~3\left( \cfrac{2}{3}x-\cfrac{2}{3} \right)}\implies 3y+18~~ = ~~2x-2 \\\\\\ 3y=2x-20\implies -2x+3y=-20\implies 2x-3y=20[/tex]

[tex][Hello,BrainlyUser][/tex]

Answer:

[5] [tex]2x^2+xy+-3y^2[/tex]

[6] [tex]2x^3+-7x^2+-3x[/tex]

[7] [tex]4a+2b[/tex]

[8] [tex]6x+2y-5[/tex]

[9] [tex]x^2-3xy-10y+75[/tex]

Step-by-step explanation:

Let's start with [5]

[tex]3x^2-2xy-2x^2-(x^2-3xy+y^2)[/tex]

Distribute the Negative Sign:

[tex]=3x^2-2xy-2y^2-1(x^2-3xy+y^2)[/tex]

[tex]=3x^2+-2xy+-2y^2+-1x^2+-1(-3xy)+-1y^2[/tex]

[tex]=3x^2+-2xy+-2y^2+-x^2+3xy+-y^2[/tex]

Combine like term

[tex]=3x^2+-2xy+-2y^2+-x^2+3xy+-y^2[/tex]

[tex]=(3x^2+-1x^2)+(-2xy+3xy)+(-2y^2+-y^2)[/tex]

[tex]=2x^2+xy+-3y^2[/tex]

Answer = [tex]2x^2+xy+-3y^2[/tex]

-------------------------------------------------------------------------------------------------------------

[6] [tex]\left(2x^3-5x^2-3x\right)-2x^2[/tex]

Combine like terms

[tex]\left(2x^3-5x^2-3x\right)-2x^2[/tex]

[tex]=(2x^2)+(-5x^2+-2x^2)+(-3x)[/tex]

[tex]=2x^3+-7x^2+-3x[/tex]

Answer = [tex]2x^3+-7x^2+-3x[/tex]

-------------------------------------------------------------------------------------------------------------     [7]  [tex]4a-(3a-2b)+3a[/tex]

[tex]=4a+-3a+2b+3a[/tex]

Combine like terms:

[tex]=(4a+-3a+3a)+(2b)[/tex]

[tex]=4a+2b[/tex]

Answer = [tex]4a+2b[/tex]

-------------------------------------------------------------------------------------------------------------

[8]  [tex]\left[3x-\left[x-4x+2y\right)+4y\right]-5[/tex]

[tex]3x-(-3x-2y+4y)-5[/tex]

[tex]=3x-(-3x+2y)-5[/tex]

[tex]=3x+3x-2y-5[/tex]

[tex]=6x-2y-5[/tex]

Answer = [tex]6x-2y-5[/tex]

-------------------------------------------------------------------------------------------------------------

[9] [tex]x^2-3xy+5\left\{2+\left[y-3\left(y-6\right)-5\right]\right\}[/tex]

Combine likes terms

[tex]x^2-3xy-10y+75[/tex]

Answer = [tex]x^2-3xy-10y+75[/tex]

[CloudBreeze]

Answer:

20,21,29 or 20, 99 and 101.

Step-by-step explanation:

[tex]a^{2} +b^{2} =c^{2}[/tex]

[tex]20^{2} +21^{2} =29^{2}[/tex]

[tex]400+441=841[/tex]

OR:

[tex]a^{2} +b^{2} =c^{2}[/tex]

[tex]20^{2} + 99^{2} = 101^{2}[/tex]

[tex]400+9801=10201[/tex]

hope this answer helps

Can u mark this as brainliest

Answer:

11 cm

formulae:

volume of cube: a³  [ where a is side length ]

solve:

side³ = volume

a³ = 1331

a = ³√1331

a = 11

Answer:

11 cm

Step-by-step explanation:

the volume (V) of a cube is calculated as

V = s³ ( s is the side length )

given V = 1331 cm³ , then

s³ = 1331 ( take cube root of both sides )

s = [tex]\sqrt[3]{1331}[/tex] = 11

Answer:

five thousand one hundred and seventy nine

Answer:

53

Step-by-step explanation:

f(x)= 3x^3+x^2+2x-21

X=-2

2      3   1  2.    21

bring the 3 down

2x3=6

6+1=7

7x2=14

14+2=16

16x2=32

32+21=53

Therefore, you have a remainder of 53

Answer:

200 cm^2

Step-by-step explanation:

1. the side lengths are 10 and 5

2. double

3. 20*10 = 200

Answer:

$11

Step-by-step explanation:

Let's take 20% and convert it into a decimal, which is .20. Multiply that percentage by $55 (.20 * 55) and you get $11, which is the answer.

The standard form for a linear equation is: ax + by + c = 0

Once we move all the variables and constants to one side, we get the standard form for a linear equation

[tex]y = \frac{2}{5} x - 7\\y -\frac{2}{5}x = -7\\ y - \frac{2}{5}x + 7 = 0\\[/tex]

Hope that helps!

Answer:

True: B, C, D, F, G

False: A, E

Step-by-step explanation:

The false statements are false because we don't know anything about the measures of the sides of the red and blue triangles.

We do know that EF which is vector v is the hypotenuse of a 3-4-5 triangle, And that triangle ABC and triangle A'B'C' are exactly the same shape and size. And that one slid (translation) down at the exact angle and direction of vector v...so all the points, parts, sides, pieces of the triangle slid down in the same angle and direction.

Answer:

5,8

Step-by-step explanation:

Because each number goes up by one and has a pattern

Answer:

50 and 80

Step-by-step explanation:

two numbers are in ratio 5;8 which  is 5x + 8x

sum = 130

5x  + 8x  = 130

13x = 130   ( divide both sides by 13)

x = 10

to find the two numbers we multiply by x

5x  = 5 x 10   = 50

8x  =  8  x 10  = 80

Answer: x<-21

Step-by-step explanation: I worked on the problem and checked online. Your good! Hope this helps! ^w^

Answer:

Step-by-step explanation:

Comment

The question means that you are to break both numbers down in to prime factors. When you do, what do the numbers have in common

90: 2 * 3 * 3 * 5

126: 2 * 3 * 3 * 7

The bolded numbers are the primes in common

Primes in common (answer): 2 * 3 * 3 = 18

Answer:

56/100

Sorry, I looked this up so someone else might need to show you the work.

But I got the answer

Answer:

Given:

To Find:

Solution:

First, we have to find the Circumference of the Wheel:

As, we know:

[tex] \bigstar \:{\boxed{ \rm{Circumference_{(Circle)} = 2 \pi r }}} \: \bigstar[/tex]

where,

So, the Circumference of wheel will be:

[tex]{\large{\rm{\dashrightarrow{Circumference_{(Wheel)} = 2 \times \frac{22}{7} \times 1.75 }}}} [/tex]

[tex]{\large{\rm{\dashrightarrow{Circumference_{(Wheel)} = \frac{2 \times 22}{7} \times 1.75}}}}[/tex]

[tex]{\large{\rm{\dashrightarrow{Circumference_{(Wheel)} = \frac{44}{7} \times 1.75 }}}}[/tex]

[tex]{\large{\rm{\dashrightarrow{Circumference_{(Wheel)} = \frac{44 \times 1.75}{7} }}}}[/tex]

[tex]{\large{\rm{\dashrightarrow{Circumference_{(Wheel)} = \frac{77}{7} }}}}[/tex]

[tex]{\large{\rm{\dashrightarrow{Circumference_{(Wheel)} ={ \boxed{ \rm{ \red{11m}}}}}}}}[/tex]

Hence, the circumference of the wheel is 11m.

Now, we have to convert distance covered km into m:

[tex]{\leadsto{\large{\rm{ \: Distance \: Covered = 22km}}}}[/tex]

[tex]{\leadsto{\large{\rm{ \: Distance \: Covered =(22 \times 1000)m }}}}[/tex]

[tex]{\leadsto{\large{\rm{ \: Distance \: Covered = {\boxed{\rm{\red{22000m}}}}}}}}[/tex]

Hence, the distance covered is 22000m.

Now, we have to find the number of revolution:

Given:

According to the question by using the formula, we get:

[tex] \bigstar \: { \boxed{ \large{ \rm{Number \: of \: Revolution \: = \: \frac{Distance \: Covered}{Circumference }}}}}[/tex]

[tex]{ \large{ \longrightarrow{ \rm{Number \: of \: Revolution = \frac{22000}{11} }}}}[/tex]

[tex]{ \large{ \longrightarrow{ \rm{Number \: of \: Revolution = { \boxed{\red{2000}}}}}}}[/tex]

Answer:

f(t)=4800(1.0378)^4t

3.78%

Step-by-step explanation:

f(t)=

f(t)=a(1+r)^t

f(t)=4800(1+0.16)^t

f(t)=4800(1.16)^t