how many children are in a crowd of 7900 if the proportion is 20%?

Answer:

the answer is the first graph

Step-by-step explanation:

because the negative points are not viable

The graph of the equation y = 5.5x is shown in the picture and the slope of the line is positive, which is 5.5 option first is correct.

A straight line is a combination of endless points joined on both sides of the point.

The slope 'm' of any straight line is given by:

[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]

We have a linear equation in the form of slope:

y = 5.5x

Slope of the line m = 5.5

Slope is positive, which means the line goes down to up.

We can plot the graph of the equation y = 5.5x

Option first On a coordinate plane, x-axis is numbered negative 5 to positive 5 in increments of 1, and the y-axis is numbered negative 27.5 to 27.5 in increments of 5.5. A straight line with a positive slope begins at point (0, 0) and ends at point (5, 27.5) is correct.

Thus, the graph of the equation y = 5.5x is shown in the picture and the slope of the line is positive, which is 5.5 option first is correct.

Learn more about the straight line here:

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Answer:24

Step-by-step explanation: the pattern is add 5 minus 2 (13+5=18, 18-2=16) so 19+5=24

Answer: 24

Step-by-step explanation: pattern is add 5 then subtract two for next one

Hope this helps

Answer:

None of the above

Step-by-step explanation:

So in order to do this you have to plug in each answer to the equation.

Lets start with (6,0)

0 = -2(6) + 6 =     0 = -6.  This answer is wrong because its false. 0 does not equal -6.

Next answer, (1,4)

1 = -2(4) + 6 =     1 = -2   This answer is also wrong because 1 does not equal -2.

Next answer, (-2,-2)

-2 = -2(-2) + 6 =      -2 = 10   This answer is wrong as well because -2 doesn't equal 10.

This leaves us with none of the above which is true since the first 3 answers are wrong.

The equations used to find the length of leg of triangle are:

[tex]0.5x(x+2) = 24\\\\x^2+2x-48=0\\\\x^2+(x+2)^2 = 100[/tex]

Solution:

From given,

Area of right triangle = 24 square feet

Also from given figure in question (attached below )

base = x and height = x + 2

The area of triangle is given by formula:

[tex]Area = \frac{1}{2} \times base \times height[/tex]

Substituting the values we get,

[tex]24 = \frac{1}{2} \times x \times (x+2)\\\\24 = 0.5x(x + 2)\\\\48 = x(x+2)\\\\x^2 + 2x - 48 = 0\\\\[/tex]

Also, the above equation can be written as,

[tex]x^2 + (x+2)^2 =100[/tex]

Thus the equations used to find the length of leg of triangle are:

[tex]0.5x(x+2) = 24\\\\x^2+2x-48=0\\\\x^2+(x+2)^2 = 100[/tex]

Answer:

A, D, E

Step-by-step explanation:

From the answer above, but the letters to make it easier :)

Answer:

Elena went 4 meters a second.

Step-by-step explanation:

The first thing we would do would be to divide 60 and 15.

So 60÷15

This would equal 4.

If you have any questions feel free to ask in the comments. - Mark

Answer:

She went 4 meters per second

Step-by-step explanation:

Equation is:   15x=60

                     15     15

x=4 meters    

Answer:

cj sjx soiebxidhevdi hi

Answer: hi

Step-by-step explanation:

Lol

Answer: [tex]y=0[/tex]

Step-by-step explanation:

For this exercise it is important to remember:

1. The Product of powers property. This property states that:

[tex](a^m)(a^n)=a^{(m+n)}[/tex]

2. The multiplication of signs:

[tex](+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-[/tex]

Then, given:

[tex]8^3*8^{-5}*8^y=8^{-2}=\frac{1}{8^2}[/tex]

You can identify that [tex]8^{-2}[/tex] is obtained by applying the Product of powers property:

[tex]8^{3+(-5)+y}=8^{-2}=\frac{1}{8^2}[/tex]

Based on the explained above, you can write the following equation:

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

Therefore you must solve for the variable "y" in order to find its value. You get that this is:

[tex]3-5+y=-2\\\\-2+y=-2\\\\y=-2+2\\\\y=0[/tex]

Answer:

You're trying to find the value of y that would result in 8^-2. When you multiply terms with the same base, you can add the exponents. 3+-5=-2 and -2-(-2) equals 0, so therefore y is equal to 0.

Step-by-step explanation:

I'm pretty sure it's

(24/3) + x.

Simplify it: 8 + x

Answer:

0 to StartFraction pi Over 2

Step-by-step explanation:

we know that

If the arc on a circle measures 85 degrees, then the measure of the central angle is also 85 degrees too

so

The central angle in degrees is within the range [tex](0,90^o)[/tex]

Convert to radians

Remember that

[tex]\frac{\pi}{2}\ radians=90^o[/tex]

therefore

the range in radians is [tex](0,\frac{\pi}{2})[/tex]

0 to StartFraction pi Over 2

Answer: A. 0 to pi/2 radians

Step-by-step explanation:

Answer:

195in^2 is the correct answer.

Step-by-step explanation:

Answer:

112.5

Step-by-step explanation:

112.5 ÷ 450 =

0.25 =

0.25 × 100/100 =

0.25 × 100% =

(0.25 × 100)% =

25%

or

25% × 450 =

(25 ÷ 100) × 450 =

(25 × 450) ÷ 100 =

11,250 ÷ 100 =

112.5

Answer:

112.5

Step-by-step explanation:

First you would divide 450÷100=4.5. Then you would multiply 4.5×25=112.5.

this would give you 25% of 450

400÷100=4.5

4.5×25=112.5

Answer:

The answer is (t4)-7

Step-by-step explanation:

First you simplify the like terms so t add the 2s together and you get t4 then add the negative numbers and it equals -7.

Answer:(t4)-7

Step-by-step explanation:

Answer:

y = -9x + 12

Step-by-step explanation:

first find the slope

m= 3 - 12

1 - 0

m = -9

y = mx + b

y = -9x + 12

(the 12 is the y intercept and is given in the question so there is no need to solve for it)

Final answer:

To find the value of x, set the expressions equal to each other and solve for x.

Explanation:

To find the value of x in the given equation, we need to set the two expressions equal to each other and solve for x. So, we have:

19x - 36 = 6x + 31

Subtracting 6x from both sides, we get:

13x - 36 = 31

Adding 36 to both sides, we get:

13x = 67

Dividing both sides by 13, we get:

x = 67/13

So the value of x is approximately 5.15.

Answer:

. .

. .

_

explanation

2×20^1+(1×5+2)×20^0=47

The number 47 in Mayan notation is:

..

-..

Writing 47 in Mayan notation:

1. Divide 47 by 20:

  - Quotient: 2

  - Remainder: 7

2. Convert to Mayan symbols:

  - Quotient (2) for the second level (20s place): Two dots (..)

  - Remainder (7) for the first level (units place): One bar and two dots (-..)

So, 47 in Mayan notation is:

..

-..

Top level (2 × 20) = ..

Bottom level (7) = -..

Answer:

8

Step-by-step explanation:

12+15=27 27+3=30 30+6+4=40 40/5=8

Answer:

the answer is 8

Step-by-step explanation:

12+15+6+4+3 / 5 = 8

Answer:

c. ( 5, 3)

Step-by-step explanation:

6x-27=4x-17

6x-27-4x=4x-17-4x

2x-27=-17

2x-27+27=-17+27

2x=10

x=10/2

x=5

y=6(5)-27

y=30-27

y=3

Tony is correct.

Step-by-step explanation:

Given polynomial is;

[tex]x^2+13x+36=0[/tex]

Tony's answer is x = -9

We will put x = -9 in given polynomial.

[tex](-9)^2+13(-9)+36=0\\81-117+36=0\\0 = 0[/tex]

Tony's solution satisfies the equation.

Erika's answer is x = 4

We will put x = 4 in given polynomial.

[tex](4)^2+13(4)+36=0\\16+52+36=0\\104\neq 0[/tex]

Erika's solution does not satisfy the equation, therefore

Tony is correct.

Keywords: polynomial, roots

Learn more about polynomials at:

#LearnwithBrainly

Answer:

n = 2m

Step-by-step explanation:

total number of movies = 2 movies every month times the number of months

Answer:

n = 2m

Step-by-step explanation:

total number of movies = 2 movies every month times the number of months

Answer:

CPCTC

Step-by-step explanation:

If abc=def is given,

then using the cpctc rule. (corresponding parts of congruent triangles are congruent) should state this answer.

Answer:96

Step-by-step explanation:

Answer:

-5/6

Step-by-step explanation:

3(1/6+2/9)+(-2)

1/6+2/9= 7/18

3*7/18 = 21/18 = 1 1/6

1 1/6 - 2 = -5/6

Answer:

x= 14√3

y= 28√3

Step-by-step explanation:

Please see attached picture for full solution.

(tan30° and cos30° are special angles so there's an exact value to it in which we can memorise.)

In this case, by Pythagoras's Theorem, you should ensure that:

[tex] {y}^{2} = 42^{2} + {x}^{2} [/tex]

✓ Let's check:

[tex]{y}^{2} = (28 \sqrt{3} )^{2} \\ y^{2} = 2352 \\ {x}^{2} + {42}^{2} = ( 14\sqrt{3})^{2} + 1764 = 2352[/tex]

This satisfies Pythagoras' Theorem :)

For this kind of questions, first label the adjacent side, opposite side and the hypotenuse side of the triangle.

Cosine angle= adjacent/ hypotenuse

Sine angle= opposite/ hypotenuse

tangent angle= opposite/ adjacent

Then substitute the known side and angle to find the unknown side.

Answer:

The only correct statement is ii) In Grade 8,  17% of the students liked

running.

Step-by-step explanation:

Favorite Sports

                    Swimming        Running      Volleyball      Total

Grade 8            0.24                0.17             0.05               0.46

Grade 9            0.18                 0.14             0.22               0.54

Total                  0.42                0.31            0.27                 1

i.) In Grade 8 14 students liked swimming.

   This cannot be said with accuracy as the total number of students is not

   known.

ii) In Grade 8,  17% of the students liked running.

   This statement is TRUE.

iii)  In Grade 9, 31% of students liked volleyball.

    This statement is NOT TRUE.  In Grade 9,  22% of the students liked

     volleyball.

iv)  In Grade 9, 22 students liked volleyball.  

    This cannot be said with accuracy as the total number of students is not

   known.

  The only correct statement is ii) In Grade 8,  17% of the students liked

  running.

Answer:

In Grade 8,  17% of the students liked running.

Question:

Courtney walked from her house to the beach at a constant speed of 4 kilometers per hour and then walked from the beach to the park at a constant speed of 5 kilometers per hour. The entire walk took 2 hours and the total distance Courtney walked was 8 kilometers.

Let b be the number of hours it took Courtney to walk from her house to the beach, and p the number of hours it took her to walk from the beach to the park.

Which system of equations represents this situation?

Answer:

CORRECT (SELECTED)

⎪b+p=2

⎨4b+5p=8

Answer:

972

Step-by-step explanation:

10 x 36= 360

12 x 51= 612

360+612= 972

Brainliest please :)

Answer:

972

Step-by-step explanation:

Product = Multiplication

Sum = Addition

10 * 36 + 12 * 51

Multiply first

360 + 612

Add

972

Hope this helps :)

Height is 6 inches

Step-by-step explanation:

The volume of a box can be calculated as : l * w * h

Volume of the box is given as =672 in²

Applying the formula

v=l*w*h

672= 14*8*h

672/(14*8) = h

6=h

Height is 6 inches

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Volume of a rectangular box:https://brainly.com/question/10777272

Keywords ; company, volume,height, inches

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Answer:

6 in

Step-by-step explanation:

Step-by-step explanation:

We have,

[tex]-16(0.47)^2[/tex]

To find, the value of [tex]-16(0.47)^2[/tex] = ?

∴ [tex]-16(0.47)^2[/tex]

= [tex]-16(\dfrac{47}{100} )^2[/tex]

= [tex]-16\times \dfrac{47}{100}\times \dfrac{47}{100}[/tex]

= [tex]-4\times \dfrac{47}{25}\times \dfrac{47}{100}[/tex]

= [tex]- \dfrac{47}{25}\times \dfrac{47}{25}[/tex]

=[tex]- \dfrac{2209}{625}[/tex]

= - 3.5344

∴ The value of [tex]-16(0.47)^2[/tex] = - 3.5344

Thus, the value of [tex]-16(0.47)^2[/tex] is equal to - 3.5344.

Answer:

Part A : [tex]1621\frac{1}{3}\pi[/tex] cubic meters.

Part B : 540π cubic cm.

Part C : [tex]V = \frac{4}{3}\pi r^{3}[/tex]

Step-by-step explanation:

Part A :

The volume of the silo includes the volume of a hemisphere and a cylinder.

So, the total volume

[tex]V = \frac{2}{3}\pi r^{3} + \pi r^{2}h[/tex]

⇒ [tex]V = \frac{2}{3} \times \pi (8)^{3} + \pi (8)^{2} (20)[/tex]

⇒ [tex]V = \frac{1024}{3}\pi + 1280\pi = 1621\frac{1}{3}\pi[/tex] cubic meters. (Answer)

Part B :

The volume of the cylindrical cup with height 15 cm and base radius 6 cm is given by

[tex]V = \pi r^{2}h = \pi (6)^{2} (15) = 540\pi[/tex] cubic cm.

Therefore, Mary can put 540π cubic cm of water in the cup with out it overflowing. (Answer)

Part C :

A basketball is of a spherical shape.

So, the formula of its volume is given by [tex]V = \frac{4}{3}\pi r^{3}[/tex]. (Answer)