There are 60 students in the school band. 30% of them are sixth graders, 50% are seventh graders, and the rest are eighth graders. a. How many band members are sixth graders? b. How many band members are seventh graders? c. What percentage of the band members are eighth graders? Explain your reasoning.​

Answer:

f = 8 feet

Step-by-step explanation:

In Δ EBC

∵ DF ⊥ BE

∵ CB ⊥ BE

∴ DF // CB

∵ D is the mid-point of CE

∵ DF // CB

∴ F is the mid-point of EB

∵ DF joining the mid-points of EB and EC

∴ DF = [tex]\frac{1}{2}[/tex] CB

∵ CB = f and DF = 4 ft

∴ 4 = [tex]\frac{1}{2}[/tex] f

→ Multiply both sides by 2

∴ 8 = f

∴ The value of f is 8 ft

Answer:

1 solution

Step-by-step explanation:

If you solve for the system of equations you get (0,1) or x=0; y=1. This leads us to select B: One Solution as our answer choice.

If you can please give my answer the brainliest that would be much appreciated. Thanks!

Answer:

-7

Step-by-step explanation:

Answer: x=2

Step-by-step explanation:

What you do is you plug the y equation on top and you substitute it in for the y on the equation below. You have -3x=-2(-5x+8)-10

Answer:

Factoring: Finding what to multiply together to get an expression. It is like "splitting" an expression into a multiplication of simpler expressions.

Hope it helps. have a wonderful thanksgiving day! :)

Answer:

The common difference is -20

Step-by-step explanation:

Simply subtract 5 from -15

-15-5 = -20

1. 4 ^ 9 x 4 ^ 3​

2. 4^9+3

answer: 4^12

Good luck!

Answer:

m∠1 = 55° ; m∠2 = 58°

Step-by-step explanation:

Let m∠1 = x° , then m∠2 = x° + 3°

m∠1 + m∠2 = 113°

x° + x° + 3° = 113°

2x + 3 = 113

2x = 110

x = 55°

m∠1 = 55° and m∠2 = 58°

The value of m∠[tex]1[/tex] is [tex]55[/tex]° and m∠[tex]2[/tex] is [tex]58[/tex]°

In the given figure m∠WXZ = [tex]113[/tex]° and m∠[tex]2[/tex] is [tex]3[/tex]° more than  m∠[tex]1[/tex].

What is angle?

An angle is formed when two rays are joined together at a common point.

Now,

Let  m∠[tex]1[/tex] = x° and m∠[tex]2[/tex] = x° + 3°

According to given figure;

m∠[tex]1[/tex] +  m∠[tex]2[/tex] = 113°

x° + x° + 3° = 113°

2x° + 3° = 113°

2x° = 110°

x° = 55°

Hence, the value of  m∠[tex]1[/tex] = x° = 55° and m∠[tex]2[/tex] = 55° + 3° = 58°

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Step-by-step explanation:

[tex]4=2^2=\bold1\cdot2^2+\bold0\cdot2^1+\bold0\cdot2^0\\\\4_{10}=\bold{100}_2=0100_2[/tex]

Answer:

-6a - 3

Step-by-step explanation:

hope this helps

Answer:

11a -18

Step-by-step explanation:

Inverse 9A make it to -9A take it to the other side and inverse +7 to -7 and take it to below -11 so -11 -7 is -18

Answer:

x= -14

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

g(x)=x-4

g(x)=10 = g(x)=x-4 /+4

g(x)=14

Answer:

La pendiente de la ecuación es -1.5 y su interpretación en el contexto del problema es que en este caso este valor indica que la longitud L de la vela luego de t horas desde que se encendió la decrece en 1.5 unidades por cada hora.

Step-by-step explanation:

La función lineal se define por la ecuación

f(x) = mx + b

o

y = mx + b

donde m es la pendiente de la recta y b es la ordenada al origen.

La gráfica de una función lineal es siempre una recta.

Como se mencionó, la m es la pendiente de la recta. La pendiente es la inclinación con respecto al eje x, que es el eje de abscisas.

La pendiente m significa que si aumentamos la x en una unidad, la y aumenta en m unidades. Si m es positiva (m > 0), entonces la función es creciente. En cambio, si la m es negativa (m < 0), entonces la función es decreciente.

En este caso, siendo L=1.5 - 1.5t y comparando con la expresión y=mx + b, podes observar que el valor de la pendiente m es -1.5. Como m es un número negativo, entonces se trata de una función decreciente. En este caso este valor de pendiente indica entonces que la longitud L de la vela luego de t horas desde que se encendió la decrece en 1.5 unidades por cada hora.

La pendiente de la ecuación es -1.5 y su interpretación en el contexto del problema es que en este caso este valor indica que la longitud L de la vela luego de t horas desde que se encendió la decrece en 1.5 unidades por cada hora.

Answer:

1/3

Step-by-step explanation:

The total amount of students is 45. 1/3 of 45 is 15

Answer:

About 33.3% of students voted for Beau.

Answer:

(2x + 2 x 7)

Step-by-step explanation:

Answer:

1.250

2.225

3.225

4.225

Answer:

A: -5, 2

B: -2, -5

C: 5, 0

D -1, 2

Hope this helps!

Answer:

c

S1tep-by-step explanation:

8x8=64

6x6=36

64+36=100

10x10=100  

x=10

Answer:

9(331)-123=1

Step-by-step explanation:

2. In the diagram below WXZ is a right angle. If the measure of WXV is 11 more than there times the measure of WXY and the measure of YXV = 139, find the measure of YXZ

Answer: 79%

Step-by-step explanation:

min —> 30 mins because half an hour is 30 mins.

(1 - 0.5)^30 = .214638..

1 - .214638 = .78536

round that to the closest percent equals 79%

Answer: 15 < n < 25

Step-by-step explanation: this was the answer on edge

Answer: Option 4 or D. 15 < n < 25

Step-by-step explanation: Trust Me!

If you are working on Edge the answer is correct. The proof is down below. I hope someone finds this helpful.

If you found any of my answers helpful please like and choose my answer as Brainliest. I would appreciate it! Good luck everyone! :)

The true statements are:

1) The relationship is proportional

2) y = -3x is equation of the line.

3) The slope is negative.

In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction

A graph of the line is given.

If a line passes through two points (x₁ ,y₁) and (x₂, y₂) ,

then the equation of line is

y - y₁ = (y₂- y₁) / (x₂ - x₁) x (x - x₁)

And line passes through the points (4, -12) and (6, -18).

To find the slope;

m =  (y₂- y₁) / (x₂ - x₁)

m = -3

The slope is negative.

Then the equation of the line is,

y + 12 = -3(x -4)

y + 12 = -3x + 12

y = -3x

This equation shows the proportional relationship.

Therefore, all the required values are given above.

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Answer:

They are congruent im just not sure how to prove it... maybe by showing the transformations that got it to that point?

Step-by-step explanation:

sorry ):

Answer:

They are congruent because they are the same size and shape.

Step-by-step explanation:

Answer:

ANSWER

GIVEN:

OA= 3x-1 , OC= 5x-3, OD= 6x-5 , BO = 2x+1

AO/OC = BO/OD

[The diagonals of a Trapezium divide each other proportionally]

(3x-1)/(5x-3) =( 2x+1)/(6x-5)

(3x-1) (6x-5) = (5x-3) ( 2x+1)

3x(6x-5) -1 (6x-5) = 2x(5x-3)+1(5x-3)

18x² -15x -6x +5 = 10x² -6x +5x -3

18x² -21x +5 = 10x² - x -3

18x² -10x² -21x + x +5+3 =0

8x² - 20x +8= 0

4(2x² -5x +2) = 0

2x² -5x +2 = 0

2x² -4x -x +2= 0

[By factorization]

2x(x-2) -1(x-2)= 0

(2x-1) (x-2) = 0

(2x-1) = 0 or (x-2) = 0

x = ½ or x = 2

If we put x= ½ in OD , The value of OD is negative.

Hence, the value of is x = 2.

Step-by-step explanation:

1 =29 and 2=44...............

Answer:

15/2 or 7.5

Step-by-step explanation:

-4(x-1)+6x=2(17-x) PEDMAS

-4x+4+6x=34-2x combine terms

2x+4=34-2x subtract 4 and add 2x

4x=30  divide by 4

x=15/2

Answer:

Step-by-step explanation:

-4x + 4 + 6x = 34 - 2x

Solving like terms

2x + 4 = 34 - 2x

Bringing like terms on one side

2x + 2x = 34 - 4

4x = 30

x = 30/4

x = 15/2

Answer:

Step-by-step explanation:

Answer:

I think its the one w -1= -1

Step-by-step explanation:

becuase 2 minus 1 is -1 nd -1 minus 0 is -1 i could be wrong

Answer:

C

Step-by-step explanation:

Answer:

32.1

Step-by-step explanation:

Answer:

m∠ULE = 60°

Step-by-step explanation:

To find the measure of ∠ULE we will use the property of exterior angle of a triangle.

Since, measure of an exterior angle of a triangle is equal to the sum of two opposite interior angles.

m∠LUR = m∠LEU + m∠ULE

109° = 49° + m∠ULE

m∠ULE = 109 - 49

             = 60°

Therefore, measure of angle ULE is 60°.