I need help with this question! Markets best answer as brainliest!!

Answer:

There are 406 students in the school

Step-by-step explanation:

Let the number of students in the school be x

The total ratio is 11 + 3 = 14

The ratio that buys lunch is represented by 3

So, we have it that;

3/14 * x = 87

3x = (14 * 87)

x = (14 * 87)/3

x = 406

Answer:

(x + 5)**2 + (y + 2)**2 = 25

Step-by-step explanation:

We know that the general equation for a circle is ( x - h )^2 + ( y - k )^2 = r^2, where ( h, k ) is the center and r is the radius. The graph shows the center at (-5, -2), and the radius of 5. So plugging this in

(x - -5)**2 + (y - - 2)**2 = 5**2

(x + 5)**2 + (y + 2)**2 = 25

Answer:

Step-by-step explanation:

y=-1/5x

x             y

-4           -4/5

-10        2

0          0

-50    -10

Answer:

A and B are factored correctly

Step-by-step explanation:

C does not equal 1277

52 - 8(50)3

52 - 720(3)

52 - 2160

= 2108

Answer:

x = y = [tex]\sqrt{7\\}[/tex]

Step-by-step explanation:

[tex]\sqrt{7} ^{2} + \sqrt{7} ^{2} = \sqrt{14}^{2}\\7 + 7 = 14[/tex]

Answer:multiplicando de 2 en dos hasta llegar a 40

Step-by-step explanation:

-6,-4-2,0,2,4,6,8,10,

Answer:

d. 132

Step-by-step explanation:

Step-by-step explanation:

f(x)= 2x² + 5x – 3, then what is f(–2)?. Possible Answers:. – 137.

Answer:

37 degrees

Step-by-step explanation:

1. m∠CBA = 71+45 = 116 degrees

2. m∠CBA = m∠CDA because of the quadrilateral property of opposite sides.

3. m∠CBA + m∠CDA = 2*116 = 232.

4. Total angle measure of a quadrilateral is 360 degrees, so m∠BAD + m∠BCD = 360-232 = 128 degrees.

5. m∠BAD = m∠BCD = 128/2 = 64 degrees

6. m∠BAC = m∠BAD - m∠CAD = 64 - 27 = 37 degrees

Answer:

≈113.09734

Step-by-step explanation:

A=πr2=π·62≈113.09734

Answer:

25.12 in³

Step-by-step explanation:

v = (1/3)πr²h

Plug in the givens

v = (1/3)(3.14)(4/2)²(6)

v = (1/3)(3.14)(4)(6)

v = 25.12

Answer:

it's c

Step-by-step explanation:

Answer:

Trapezoid

Step-by-step explanation:

Answer:

3 1/3 miles per hour

Step-by-step explanation:

(5/2 ÷ 3/4) = (s ÷1)

(5/2 ÷ 3/4) = 10/3

10/3 = s/1

cross-multiply:

3s = 10

s = 10/3

s = 3 1/3 miles per hour

Answer:

3 1/3 mph

Step-by-step explanation:

-____________________-

Answer:

18.75=p

s=14.06

b=2.34

Step-by-step explanation:

37.75=b+s+p

-4

33.75=b+s+p

s=3/4p

b=1/6s

33.75=1/6(3/4p)+3/4p+p

33.75=3/20p+3/4p+p

(33.75=18/20p+p)20

675=18p+p)/18

37.50=2p)/2

18.75=p

s=3/4p

3/4(18.75)

s=14.06

b=1/6s

1/6(14.06)

b=2.34

37.75-4=18.75+14.06+2.34=35.15

im missing 50 cents somewhere its wrong but close i think sorry

The cost of a brush, a sketchbook and a paint set given the total amount with Tina is $2.25, $13.5 and $18 respectively.

Total = $37.75

Amount left = $4.00

let

37.75 = p + b + s + 4

37.75 - 4 = p + 1/6s + 3/4p

33.75 = 1/6s + 1 3/4p

33.75 = 1/6(3/4p) + 1 3/4p

33.75 = 3/24p + 7/4p

33.75 = 3+42 / 24p

33.75 = 45/24p

p = 33.75 ÷ 45/24

= 33.75 × 24/45

= 810/45

p = $18

substitute into

s = 3/4p

= 3/4 × 18

= 54/4

s = $13.5

b = 1/6s

b = 1/6 × 13.5

b = 13.5/6

b = $2.25

Learn more about equation:

https://brainly.com/question/2972832

Answer:

20 is to 56 as 3 is to x

20x= 8.2

Answer:

C. 5^10

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

All you have to do is add the exponents

Answer:

a)

Sample Space of Probability model is - S' = { [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] }

b)

Probability of Event 1 , P(1) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 2 , P(2) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 3 , P(3) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 4 , P(4) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Step-by-step explanation:

Given - Murray spins the pointer of the spinner as shown .

To find - a. What is the sample space for the probability model?

              b. What is the probability of each event in the sample space?

Proof -

The Sample space is the set of all possible outcomes.

So,

Sample space becomes -

S = { 3, 5, A, Y, 3, 5, A, Y}

Total number of outcomes, n(S) = 8

Now,

We can see that There are 4 types of event

Event 1 : 3

Event 2 : 5

Event 3 : A

Event 4 : Y

So,

Probability of Event 1 , P(1) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 2 , P(2) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 3 , P(3) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 4 , P(4) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Now,

Sample Space of Probability model is -

S' = { [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] }

∴ we get

a)

Sample Space of Probability model is - S' = { [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] }

b)

Probability of Event 1 , P(1) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 2 , P(2) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 3 , P(3) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 4 , P(4) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Answer:

Since a fraction represents a division, we should do that division to know what the value of a fraction is. The larger numerator, the larger the value of the fraction will be; and the larger denominator, the smaller the fraction will be. ...

Step-by-step explanation:

Answer:

What they said

Step-by-step explanation:

Answer:

x2 + 4xy - 4y2

Step-by-step explanation:

You have to subtract the values with like terms, so you´d have to take x2 from 2x2. You can´t take away x2 from 6xy because they are different terms, and it wouldn´t be compatible.

Answer:

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

Step-by-step explanation:

(3x-4)(x+5)

3x(x+5)-4(x+5)

(3x^2+15x)(-4x+20)

3x(x+5)-4(x+5)

Hope this helps you

Answer:

132 cm^2

Step-by-step explanation:

Area of trapezoid = 1/2 ( (7 + 19) * 8) = 26*4 = 104 cm^2

Area of rectangle = 4 x 7 = 28 cm^2

104 cm^2 + 28 cm^2 = 132 cm^2

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