The ratio of boys to girls at a movie is 4:7. If there are 21​ girls, how many boys are at the​ movie?

Answers

Answer 1

Answer:

12 boys

Step-by-step explanation:

7 x 3 = 21

4 x 3 = 12

12 boys


Related Questions

2 cities are 120 miles apart. A group that is travelling from one of the cities to the other is already 3/4 of the way. How many miles do the group have left to travel?
Answer in this from, They have blank miles to go

Answers

Answer:

They have 30  miles to go

Step-by-step explanation:

1st: you find 3/4 of 120= 90 miles

They have traveled 90 miles

Next, you do 120-90.

You get 30 miles

find x when f(X) =2 find x when f(x)=0

Answers

Answer:

in both equatons, x=1

Step-by-step explanation:

there is no x on the right side of the equation, so x never changes. it is 1.

Answer:

-1

Step-by-step explanation:

Escribe un número decimal que se encuentre entre cada Par de números 0.1 y 0.01?

Answers

La respuesta es 0.05 :)

10,000 is a what of 10 because 10 x 10 x 10= 10,000

Answers

Answer:

correct

Step-by-step explanation:

it it is 10,000 because 10 * 10 * 10 = 10,000 but if it really wasn't that another way you could do it is I believe so 10 times three no cuz that's actually 30 10 times 20 or something but yeah correct

help me pls ☹️☹️☹️☹️​

Answers

The slope of a line can be found by graph using rise over run ([tex]\frac{rise}{run}[/tex]). Look at the image below to see what this mean.

Rise = vertical

run = horizontal

I took two clear points on the line as seen below and drew a right angle that formed a right triangle with the line.

Now let's count how many units the rise is (look at the second image). This is 3 units

rise = 3

Count the units of the run (third image). This is 1 unit

run = 1

Let's put these two numbers together in the [tex]\frac{rise}{run}[/tex] form:

[tex]\frac{3}{1}[/tex] or simplified = 3

However, this is not the final answer. This is a negative slope, meaning that when you look at the line from left to right (like when you are reading words) the line reaches from the top left corner to the bottom right corner. A positive slope (reading left to right) reaches from the bottom left corner to top right corner.

To signify that the slope is negative you simply add a negative sign to it:

-3

Let me know if you have any further questions.

determine the type of triangle that is drawn below.

scalene right
scalene obtuse
isosceles right
scalene acute
isosceles obtuse
equilateral
isosceles acute

Answers

I would say an equilateral

the correct answer is isosceles acute

What is the equation of the line that passes through the point (-6,-5) and has a slope of 3/2?

Answers

Finding Linear Equations

Linear equations are typically organized in slope-intercept form:

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

m = the slopeb = the y-intercept

To find linear equations, we must solve for m and b and substitute them into slope-intercept form.

Solving the Question

We're given:

Passes through the point (-6,-5)m = [tex]\dfrac{3}{2}[/tex]

Input the slope into slope-intercept form:

[tex]y=mx+b\\\\y=\dfrac{3}{2}x+b[/tex]

Solve for the y-intercept by inputting the given point (-6,-5):

[tex]-5=\dfrac{3}{2}(-6)+b\\\\-5=-9+b\\\\4=b[/tex]

Therefore, the y-intercept is 4. Plug this back into our original equation:

[tex]y=\dfrac{3}{2}x+4[/tex]

Answer

[tex]y=\dfrac{3}{2}x+4[/tex]

Give an example of each of the following, or argue that such a request is impossible.

a. A sequence that has a subsequence that is bounded but contains no subsequence that converges.
b. A sequence that does not contain 0 or 1 as a term but contains subsequences converging to each of these values.
c. A sequence that contains subsequences converging to every point in the infinite set {1, 1/2, 1/3, 1/4, 1/5,...}.
d. A sequence that contains subsequences converging to every point in the infinite set {1, 1/2, 1/3, 1/4, 1/5,...}, and no subsequences converging to points outside of this set.

Answers

Answer and Step-by-step explanation:

Solution:

(a) Let (bn) be a bounded sequence of (an) then, Bolzano- Weierstrass theorem,

(bn) contains a subsequence that is converges.

(b) The sequence :

Xn = 1 + (-1) n / 2 + 1/n

Clearly, (xn) does not contain 1 or 0.

If we take sequence (x2n), then it converges to 1 and when we take sequence (x2n+1),

Then it converges to 0.

(c) The sequence:

1

1,1/2

1, 1/2, 1/3

1, 1/2, 1/3, 1/4

i.e

(xn) = (1,1/2, 1, 1/2, 1/3, …)

Then, the subsequence (xn) that is identically ½ in second column and 1/3 is third column and so on.

It has sub sequence that converges to every point in infinite set {1, 1/2, 1/3, 1/4, 1/5…}.

(d) The sequence

{1, 1/2, 1/3, 1/4, 1/5…}

if we take sequence of given set, then, this set converges to zero. This is not contained in it.

If (xn) converges to every point in set {1, 1/2, 1/3 …} then there exists subsequence which converges to 0. And 0 does not belong to given set.

Can anyone help me with this... please I need it in like a hour...

Answers

Answer:

iii. [tex](2x-9)+5t[/tex]

iv. [tex](2x-9+5t)-\frac{2}{5}n^3[/tex]

v. [tex]\frac{(2x-9+5t)-\frac{2}{5}n^3}2[/tex]

Therefore the answer is U.

I really hope this helped you.

40 points!! look at attachment! help me understand and how to solve. ​

Answers

so its gonna be a lot to say but basically you move each point 5 units right and 2 units up

point A would be at -1, 1
point B would be at 2, -1
point C would be at 4, 0

the rest i forgot how to do sorry

Answer:

we is right

Step-by-step explanation:

If g(x) = x2 + 2, find g(3).
9
8
11
6

Answers

9514 1404 393

Answer:

  11

Step-by-step explanation:

Put 3 where x is and do the arithmetic.

  g(x) = x² +2

  g(3) = 3² +2 = 9+2

  g(3) = 11

what is 4 times x and pls explain it for me so then I can explain it​

Answers

Answer:

4x

Step-by-step explanation:

In algebra, to avoid confusing the multiply sign and x, we always just put the terms next to each other to show that they multiply each other. Here, since x is unknown, we can't find a specific answer and therefore just write it as 4x, which means 4 times x.

A movie features dangerous stunts including jumping from a helicopter, riding on the hood of a speeding car, and a number of other acrobatic stunts. The director has hired a stunt double to perform these stunts. In the filming of the helicopter scene, the stunt double is released from a height of 10,000m. Assume the only forces acting on the stunt double are gravity and air resistance. The force of air resistance is assumed to be proportional to the velocity with proportionality constant λ = 10. Assume the stunt double has a mass of 60kg and the force of gravity is −9.81m/s^2.

Required:
Construct a differential equation which models the velocity of the falling stunt double. Explain the reasoning behind how you constructed the model you chose to use. Discuss any potential shortcomings of your model. Describe any initial conditions associated with your model.

Answers

Answer:

Vt = 58.86 m/s

Step-by-step explanation:

Stunt height = 10000 m

Stunt mass = 60 kg

force of gravity = 9.81 m/s^2

proportionality constant λ = 10

Forces acting on the stunt double : Gravity and air resistance

attached below is the detailed solution

Vt = 58.86 m/s

PLEASE ANSWER ASAP


the picture is below btw 0_0

Answers

c is ur correct answer
C. 21/50, is the correct answer

HELP ASAP
graph and label the image after rotation of 90 degrees counterclockwise

Answers

Answer:

Just move the graph u

Step-by-step explanation:

Z (-3,0)

L(0,3)

J(-5,2)

BRAINLIEST?!

how do I multiply (3.4)(6.7) explain your answers and how you got that please. ​

Answers

It’s basically the same as normal multiplication just make sure that the decimals are in the same place like my example

A rectangular city is 2 miles long and 7 miles wide. What is the distance between opposite corners of the city? The exact distance is ______________ miles How far is it to the closest tenth of a mile? Answer: The distance is approximately ___________ miles.

Answers

Answer:

The distance is approximately 10.4 miles.

Answer:

exact distance is = 7.28010988928

rounded to the tenth of a mile is

distance is approximately 7.3 miles

Step-by-step explanation:

hypotenuse of a triangle that's 2 by 7

Pythagorean theorem

a^2 + b^2 = c^2

2^2 + 7^2 = c^2

4 + 49 = c^2

c^2 = 53

c = √53

c = 7.28010988928

tenth of a mile is

c = 7.3

3 times as many footballs as voleyballs were sold

Answers

Volleyballs sold= v
Footballs sold= f

v • 3 = f

please help me asap​

Answers

Answer:

Step-by-step explanation: In a total eclipse of the moon, the inner part of Earth's shadow, called the umbra, falls on the moon's face. At mid-eclipse, the entire moon is in shadow, which may appear blood red. ... In a penumbral lunar eclipse, only the more diffuse outer shadow of Earth – the penumbra – falls on the moon's face.

Determine which of the lines, if any, are parallel or perpendicular. Explain.

Line a: 4y - 12x = 20
Line b: 3y= -x + 2
Line c: y= 3x - 1

Answers

Answer:

Line [tex]a[/tex] and line [tex]c[/tex] are parallel to each other.

Line [tex]b[/tex] is perpendicular to line [tex]a[/tex].

Line [tex]b[/tex] is perpendicular to line [tex]c[/tex].

Step-by-step explanation:

Rewrite the equation of each line in the slope-intercept form [tex]y = m\, x + b[/tex] to find the slope [tex]m[/tex] of that line.

In the slope-intercept form, [tex]y[/tex] need to be on the left-hand side of the equation while [tex]x[/tex] need to be on the right-hand side. The coefficient of [tex]y[/tex] must be [tex]1[/tex]. The slope of the line would then be equal to the coefficient of [tex]x[/tex].

For example, the equation of line [tex]a[/tex] could be rewritten in slope-intercept form as [tex]y = 3\, x + 5[/tex]. The coefficient of [tex]x[/tex] is [tex]3[/tex], so the slope of this line would be [tex]m_{a} = 3\![/tex].

Similarly, rewrite to obtain the the slope-intercept equation of line [tex]b[/tex]:  [tex]y = (-1/3)\, x + (2/3)[/tex]. The slope of this line would be [tex]m_{b} = (-1/3)[/tex].

The equation of line [tex]c[/tex] is already in slope-intercept form. The slope of that line would be [tex]m_{c} = 3[/tex].

Let [tex]m_{1}[/tex] and [tex]m_{2}[/tex] denote the slopes of two lines in a Cartesian plane.

These two lines are parallel with if and only if their slopes are the same: [tex]m_{1} = m_{2}[/tex]. These two lines are perpendicular to each other if the product of their slope is [tex](-1)[/tex]: [tex]m_{1}\, m_{2} = (-1)[/tex].

In this question, the slope of line [tex]a[/tex] and line [tex]c[/tex] are the same: [tex]m_{a} = m_{c}[/tex]. Thus, line [tex]a\![/tex] and line [tex]c\![/tex] would be parallel.

The product of the slopes of line [tex]a[/tex] and line [tex]b[/tex] is [tex]m_{a}\, m_{b} = 3 \times (-1/3) = (-1)[/tex]. Thus, line [tex]a\![/tex] and line [tex]b[/tex] are perpendicular to each other.

Similarly, line [tex]b[/tex] and line [tex]c[/tex] are perpendicular to each other because the product of their slopes is [tex](-1)[/tex].

Help me please its urgent I need it done asap I need help if anyone could help me solve these problems that would be very helpful! (I'll give brainliest if you can solve all of them!) A company designs a circular dartboard such that the target area in the center is surrounded by a safety margin. Federal law requires that the area of the safety margin must be twice the area of the actual target in the center. If the total radius of the dartboard is 3 feet, what is the radius of the circular target in the center? (you must show the algebra for full credit)

Answers

Answer:

the radius of the circular target in the center is 2.12 feet

Step-by-step explanation:

the total area of the dartboard is

π x r² = π x 3² = 9π  (28.27 ft²)

The area of the actual target in the center needs to be half of the dartboard (4.5 π)  (14.14 ft²)

(Small area :  4.5π =  π x r²

                      Divide both sides by  π

        4.5 = r²

       √4.5 = r

      r= 2.12132034.......  (2.12 feet)

Select all of the situations below that can be modeled by the expression 4 + 3x.

Answers

Answer:

A,C,D

Step-by-step explanation:

Sarah went on a 36 mile trip to a soccer game. On the way back, due to road construction she had to drive 18 miles per hour slower. This made the trip take 1 hour longer. How fast did she drive to the soccer game?

Answers

Can you send a picture of the question?

Answer:

Hi Suuuman  the answer for your deleted question is OP = 7.75

Step-by-step explanation:

– 2x + 23 and -8 + 2x = 23 - 2x and -8 + 2x = x= 31 /4 =7 3/4 =7.75 measure of OP = – 2 ( 7.75) + 23 = -15.5 + 23 = 7.75

Step-by-step explanation:

Answer for this question Sarah went on a 36 mile trip to a soccer game. On the way back, due to road construction she had to drive 18 miles per hour slower. This made the trip take 1 hour longer.   36 = 18 +18(a+1)How fast did she drive to the soccer game? let the returning speed be x mphgoing to game speed = x+18 Answer is 18 km/h while returning

Step-by-step explanation:    Distance = 36

1 hour more while returning

time return - time going = 1

36/x - 36/(x+18) = 1

LCD= x ( x + 18 )

multiply by LCD

36 ( x + 18 ) - 36 x = 1 x ( x + 18 )

36*18=

36 x + 648 - 18 x = 1x ^2 + 18 x

648 = 1 x^2 - 18 x

x^2 + 18 x -648 = 0

x^2 +36x-18x-648=0

x(x+36)-18(x+36)=0

(x-18)(x+36)=0

x=-36 or 18

x =18

18 km/h while returning

while going speed = 18+18 = 36 km/h

SuuuuMan deseres all the credits as someone deleted his first ever question in error and i was shocked to see as no diagram was needed there or here -see answer in this post instead- and have requested moderators get SuuuMan an appology ok as and while you both learn the any ways to interprete x and setting both amounts to 0 and or setting amounts to = each other to find the value of x

y = x^2 + 3
Find End Behavior

Answers

X^2 3 I’m pretty sure

pleas yall help me with this cause I'm dumb

Answers

Answer:

-4.8

Step-by-step explanation:

an integer is a whole number that is not a fraction or decimal.

Answer:

The answer would be D :)

Step-by-step explanation:

Random list of rational numbers

Answers

1/3, 2/4, 1/5, 9/3, etc....

A rock is 7 feet below the surface of a river.if it’s position can be recorded as -7 feet,what would the Position of zero represent

Answers

If 7 feet below the surface of a river is written as -7 then 0 would be the surface of the river.


Easy question for easy points.

Answers

Answer:

Multiply 10 and 2 each by 4 and .07. Then add.

Step-by-step explanation:

Answer:

Multiply 10 and 2 each by 4 and .07. Then add.

Step-by-step explanation:

Emilio's Bakery is getting more and more orders for blackberry pies. The bakers made 16 blackberry pies in December, 48 blackberry pies in January, 144 blackberry pies in February, and 432 blackberry pies in March. What kind of sequence is this? arithmetic or geometric

Answers

Answer:

id say a geometric sequence

Step-by-step explanation:

you multiply 3 to get the next number of pies

What’s 11673.15175 nearest cent

Answers

Answer:

1673

Step-by-step explanation:

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