Please answer this question

Answer:

24

Step-by-step explanation:

let x be the number of children in the class , then

number of boys = [tex]\frac{1}{4}[/tex] x , so

x = [tex]\frac{1}{4}[/tex] x + 18 ( multiply through by 4 to clear the fraction )

4x = x + 72 ( subtract x from both sides )

3x = 72 ( divide both sides by 3 )

x = 24

There are 24 children in the class

Answer:

[tex]36p^{2} - 25[/tex]

Step-by-step explanation:

Answer:

Step-by-step explanation:

●Using the identity :-

●(a+b) (a-b) = a^2 - b^2

●Here, a = 6p and b = 5

=> (6p+5) (6p-5)

=> (6p)^2 - (5)^2

=> 36p^2 - 25

Step-by-step explanation:

6x^2y^3/2x-2

=6x^2y^3/2 (x-1)

=3x^2y^3/(x-1)

Answer:

3x4y3 just got this on a test and it was right

Step-by-step explanation:

Answer:

x = 2/3

Step-by-step explanation:

Add the numbers

[tex]\frac{1}{3}+3=4-x[/tex]

[tex]\frac{10}{3}=4-x[/tex]

Rearrange terms

[tex]\frac{10}{3}=-x+4[/tex]

Subtract 4 from both sides of the equation

[tex]\frac{10}{3}-4=-x+4-4[/tex]

Simplify

[tex]\frac{-2}{3}=-x[/tex]

Divide both sides of the equation by the same term

[tex]\frac{-2}{3}/1=\frac{-x}{1}[/tex]

Simplify

[tex]x=\frac{2}{3}[/tex]

[RevyBreeze]

The amount of material needed by Marta to make the flag is;

[tex]\rm Area =\sqrt{50(50-d_1)(50-d_2)(50-d_3)}[/tex] square inch.

The total cost of making the flag is;

[tex]\rm 0.15 \times\rm \sqrt{50(50-d_1)(50-d_2)(50-d_3)}[/tex] dollar.

Given

Marta is making a flag with the given dimensions.

The perimeter of the flag is 100 inches.

Let us consider that the flag has a triangular shape.

According to the Hero's formula;

The area of the triangle is given by;

[tex]\rm Area =\sqrt{s(s-a)(s-b)(s-c)}[/tex]

Where, s is the semi perimeter and a, b, and c are the sides of the triangle.

Semi perimeter s = P/2,

Since the perimeter of the flag is 100 inches.

[tex]\rm S=\dfrac{100}{2}\\\\S=50[/tex]

The dimensions of triangular shape are [tex]\rm d_1, d_2 \ and \ d_3[/tex].

Then,

The area of the triangular flag becomes;

[tex]\rm Area =\sqrt{s(s-a)(s-b)(s-c)}\\\\\rm Area =\sqrt{50(50-d_1)(50-d_2)(50-d_3)}[/tex]

So the amount of material needed to make the flag is;

[tex]\rm Area =\sqrt{50(50-d_1)(50-d_2)(50-d_3)}[/tex]

Therefore,

The cost of material = C = $0.15 per square inch

So the total cost in making the flag will be;

[tex]\rm C\times A=0.15 \times A\\\\=0.15 \times\rm \sqrt{50(50-d_1)(50-d_2)(50-d_3)}[/tex].

Hence, The amount of material needed by Marta to make the flag is [tex]\rm Area =\sqrt{50(50-d_1)(50-d_2)(50-d_3)}[/tex].

To know more about Hero's formula click the link given below.

https://brainly.com/question/24399817

Answer:

A

Step-by-step explanation:

Answer:

The answer is less than 1. :)

Answer:

62.6

Step-by-step explanation:

Answer:

➢ Breaking up Price Effect into Income and Substitution Effect (with diagram) ADVERTISEMENTS: As price of a good X falls, other things remaining the same, consumer would move to a new equilibrium position at a higher indifference curve and would buy more of good X at the lower price unless it is a Giffen good.

[tex]Into \: your Arms[/tex]

#CarryOnLearning

Answer:

113

Step-by-step explanation:

290 - 64 = 226

226 ÷ 2 = 113

Answer:

1/4

or 25%

or 0.25

Step-by-step explanation:

With a question like this, you have to multiply.

1/2 * 1/2 = 1/4

or

0.5 * 0.5 = 0.25

Explanation:

Ignore the 15 pretzels. We're only focusing on the fish crackers.

3 orange + 5 yellow + 7 green = 15 total fish crackers

Of that total, 5 are yellow.

So approximately 5/15 = 1/3 = 0.333 = 33.3% of the crackers are yellow.

The statements that are true regarding the diagram given are:

The triangle sum theorem states that all the three interior angles in a triangle have a sum of 180 degrees all together.

Thus, in the diagram given, the statements that are all true are:

m∠3 + m∠4 = 180° (angles on a straight line)

m∠4 = m∠1 + m∠2 (external angle theorem)

m∠1 + m∠2 + m∠3 = 180° (triangle sum theorem).

Learn more about triangle sum theorem on:

https://brainly.com/question/7696843

Answer:

A, D, E

Step-by-step explanation:

I got it right.

Step-by-step explanation:

sori po kailangan ko po ng points sori po talaga

Answer:

Step-by-step explanation:

2x + 2y + 7a - y

2x + 1y + 7a Combine like terms

2x + y + 7a Multiply by 1

7a + 2x + y Rearrange terms

7a + 2x + y RESULTS!

HOPE IT HELPS!!!

Answer:

Given, x,y and 40 are the angles of a triangle.

Therefore, x+y+40=180

x+y=140

The difference between the two angles x and y is 30.

Therefore, x−y=30 ....(2)

Add equations (1) and (2), we get

2x=170

⇒x=85

Substitute this value n equation (2), we get

85−y=30

⇒y=85-30

⇒y=55

Therefore, angles of a triangle are x=85, y=55 and 40.

Answer:

Step-by-step explanation:

for x :

180° - 40° = 140°  

40° / 2 = 20°

x = 20°

for y :

20° + 90° = 110°

180° - 110° = 70°

x = 70°

Answer:

Step-by-step explanation:

  f(g(2)) = f(0) = 0

  g(f(2)) = g(2) = 0

  f(f(2)) = f(2) = 2

  g(g(2)) = g(0) = 4

  (f+g)(4) = f(4) +g(4) = 4 +4 = 8

  (f/g)(2) = f(2)/g(2) = 2/0   ⇒   DNE

_____

To find the value of the function on the graph, locate the x-value on the horizontal axis and work up the vertical line to the curve of interest. Read the value of that point from the vertical scale.

Answer: her present age is 4

Step-by-step explanation:

Proof: 4+12=16

Square root 4 is 16

Answer:

  4

Step-by-step explanation:

Let x represent her present age. The given relation is ...

  x +12 = x^2

Putting this in standard form, we can factor it:

  x^2 -x -12 = 0

  (x -4)(x +3) = 0

Solutions to this quadratic are x = 4, x = -3. The -3 solution is extraneous in this context.

The girl's present age is 4.

Answer:

Step-by-step explanation:

the first nuclear every time in this topic is y and the second one is x

Answer:

8076 candies is the total number of candies on the truck

Step-by-step explanation:

If 1 box has 12 candies.

then 673 boxes shall have ( 673 * 12 ) = 8076 candies.

Answer: 9/16

Work Shown:

14 red + 10 yellow + 5 green + 3 purple = 32 total

(32 total) - (14 red) = 18 that aren't red

18/32 = 9/16 is the probability of picking something that isn't red.

Use this for formula

firstly

ax²+bx+c=0

and then

b±√(b²-4ac))/(2a)

1 . step

First compare the given equation with

general form

[tex]{a{x}^{2}\:+\:bx\:+\:c\:=\:0}[/tex]

2. step

Then find the value of discriminant

by the given equation below

[tex]\mapsto{{b}^{2}\:-\:4ac}[/tex]

3. step

subsitute the value of discriminant and other given value in Quadratic formula as per the equation .

[tex]{\rightarrow{\frac{-\:b\:±\:\sqrt{{b}^{2}\:-\:4ac}}{2a}}}\\[/tex]

Answer:

Your answer would be: square the binomial, distribute 7 inside the parentheses, and then combine like terms

Step-by-step explanation:

Answer:

134 bottles

Step-by-step explanation:

For this, I set up a proportion :

60.30/x = 0.45/1

60.30(1) = 0.45x

60.30/0.45 = 0.45x/0.45

x = 134 :)

Answer:

134 bottles

Step-by-step explanation:

conversion of dollars to cent:

$1 equals to 100 cents.

$60.30 will be (60.30*100) cents → 6030 cents

Bottles sold: total money / each bottle cost.
                  →   6030  /  45
                  →   134

So 134 bottles are sold for 45 cents to earn $60.30 or 6030 cents.

Answer:

well the other piece is 75cm that means the whole fabric is 90cm

Answer:

a: 17.62

b: 4

Step-by-step explanation:

not entirely sure if its correct but..

❥[tex]\Large\pmb{ \underline {\tt Answer}}[/tex]

2x + 5 = 3x - 25

5 + 25 = 3x - 2x

x = 30

Option B

reason:- Attached picture

Answer:

letter C is the right answer

Step-by-step explanation:

hope it helps!

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