In a class of 30 children there are g , girls what fraction of the class are girls

Answers

Answer 1
The fraction would be g/30 or x/30

Related Questions

A recipe that yields 12 cups of soup calls for 28 ounces of beef broth how many ounces of beef broth do you need to make 18 cups of soup?

Answers

Answer:

42

Step-by-step explanation:

for one cup 28/12

for 18 cup,

(28/12)×18

=42

Simplify the following (12+7)-(2-23)

Answers

Answer:

40

Step-by-step explanation:

Simplify the following (12+7)-(2-23)

(12 + 7) - (2 - 23) =

19 - (-21) =

19 + 21 =

40

What is the surface area of this right triangular prism?

Enter your answer in the box.

in²
Right triangular prism. The height of the prism is labeled 15 in. The base of the prism is a triangle with sides labeled 17 in., 17 in., ad 30 in. There is a dashed line from the vertex of the triangle perpendicular to the 30 in. side that is labeled 8 in.

Answers

Answer:

i believe its 1200

Step-by-step explanation:

HELP HELP HELP HELP HELP HELP

Answers

Answer:

x = 24°

Step-by-step explanation:

What do the sum of all angles in a triangle add up to?

The sum of all angles in a triangle add up to 180°.

First, let's find the missing angle of the big triangle (the angle next to 111°).

94 + 41 = 135180 - 135 = 45°

Now, we can find the value of x given the smaller triangle's angle.

x + 111 + 45 = 180x + 156 = 180x = 24

Therefore, x = 24°.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

Answer:

24 degrees

Step-by-step explanation:

Right corner angle

= 180 - 94 - 41

= 180 - 135

= 45 degrees

angle x

= 180 - 111 - 45

= 180 - 156

= 24 degrees

Answer the one you would like. Thank you.

Answers

Answer: 2016 in^2

Step-by-step explanation:

3) Let's start with the taller rectangular prism. The height is 24", the width is 12", and the length is 12". The smaller rectangular prism is actually a cube because the height, width, and length are all 12". Just as a refresher, the surface area of an object is only the area of each outside face. For rectangular prisms, the surface area is 2(lh+wh+lw) (l=length, h=height, w=width). And for cubes, the surface area is 6s^2, where s is the side. 2(12*24+12*24+12*12) is equal to 1440 inches squared, however, half of one face is covered. This is the longest face shaded in dark green: 24" times 12", but because only half is showing, it is 24*12 divided by 2. This is equal to 144"; and you must subtract this from the entire surface area to account for that covered space. 1440-144 is 1296 inches squared. The cube is (12*12)(6) which is 864. But one whole side is covered, meaning you need to subtract 144 to have the surface area be 720 inches squared. 1296 plus 720 is 2016 inches squared. Decounting the half a side from the prism and one full side from the cube, there are only 10 and a half sides shown.

Hope this helps :)

Translate the algebraic expression into a verbal expression. A/3 - 5b

Answers

Answer:

5 times a number subtracted from another number divided by 3.

Step-by-step explanation:

By the time the blizzard was over the temperature had dropped from
17°F to -6°F This was a drop of how many degrees?

Answers

Answer:

23

Step-by-step explanation:

To get to 17 degrees, you need to add 6 to -6 to get to 0.

And to get to 17 from 0, you need to add 17.

So then you add 6 and 17 together.

6+17=23

23
6+-6=0
6+17=23
This was a drop of 23 degrees.

Write g(x) = 40x 4x2 in vertex form. Write the function in standard form. Factor a out of the first two terms. Form a perfect square trinomial. Write the trinomial as a binomial squared. G(x) = 4x2 40x g(x) = 4(x2 10x) (ten-halves) squared = 25 g(x) = 4(x2 10x 25) – 4(25) g(x) = (x )2 –.

Answers

The vertex form of the function g(x)=40x-4x² is g(x) = 4(x + 5)² - 100, where the vertex lies at (-5, -100).

What is the Equation of a parabola?

The  general equation of a parabola is given as,

y = a(x-h)² + k

where,

(h, k) are the coordinates of the vertex of the parabola in form (x, y);

a defines how narrower is the parabola, and the "-" or "+" that the parabola will open up or down.

As we want to write a function g(x) = 40x + 4x² in vertex form, and we know that the vertex form of a parabola, with vertex at (h,k) is written as,

[tex]f(x) = a(x-h)^2 + k[/tex]

Also, the algebraic identity  [tex](x + a)^2[/tex] is written as,

[tex](x + a)^2 = x^2 + 2ax + a^2[/tex],

Therefore, [tex]x^2 + 2ax[/tex] can be written as

[tex]x^2 + 2ax = (x + a)^2 - a^2[/tex]

Further, we try to write the g(x) in the vertex form it can be written as,

[tex]\begin{aligned}g(x) &= 4x^2 + 40x\\\\ &= 4[x^2 + 10x]\\\\ &= 4[(x + 5)^2 - 5^2]\\\\ &= 4(x + 5)^2 - 100\\\end{aligned}[/tex]

Hence, the vertex form of the function g(x)=40x-4x² is g(x) = 4(x + 5)² - 100, where the vertex lies at (-5, -100).

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Could someone help me, please

Answers

Answer:

Q1: No solutions

Q2: x=2, y=-2

Q3: x=1, y=4

Step-by-step explanation:

Q1: Found out 0y = 18 which is impossible therefore no solution.

Q2:

In the first equation: [tex]2x - 4y = 12[/tex]

Let's express x in terms of y by changing the subject. Follow my steps.

[tex]2x = 12+4y[/tex]

[tex]x = \frac{12+4y}{2}[/tex]

Now let's put the x above into the second equation: [tex]-14x-4y=-20[/tex]

It becomes: [tex]-14(\frac{12+4y}{2})-4y=-20[/tex]. Follow my steps.

[tex]-7(12+4y)=-20+4y[/tex]

[tex]-84-28y=-20+4y[/tex]

[tex]-32y=64[/tex]

[tex]y=-2[/tex]

Put y = -2 into the first equation:

[tex]2x-4(-2)=12[/tex]

[tex]2x+8=12[/tex]

[tex]2x=12-8[/tex]

[tex]2x=4[/tex]

[tex]x=2[/tex]

Q3:

Multiply the first equation by 3 and the second equation by 7, so that both are 21x.

1st equation:
[tex]3(7x-3y)=3(-5)[/tex]
[tex]21x-9y=-15[/tex]

2nd equation:

[tex]7(3x+2y) = 7(11)[/tex]

[tex]21x+14y = 77[/tex]

We can now substract the 2nd equation with the 1st equation so that both 21x cancels out and only the variable y remains.

[tex]21x-9y-(21x+14y)=-15-77[/tex]

[tex]21x-9y-21x-14y=-92[/tex]

[tex]-23y=-92[/tex]

[tex]y=4[/tex]

Put y = 4 into the second equation to find x.

[tex]3x+2(4)=11[/tex]

[tex]3x+8=11[/tex]

[tex]3x=11-8[/tex]

[tex]3x = 3[/tex]

[tex]x=1[/tex]

What is the slope of the line parellel to this line -9x+3y=6

Answers

Answer: 3

Step-by-step explanation:

Determine whether the graph table or equation represents a linear or nonlinear function explain

Answers

Answer: Linear

Each time x goes up by 3, y goes up by 2. The rate of change is constant.

slope = (change in y)/(change in x) = 2/3

y intercept = 6 since this is where x = 0

The equation of this line is y = (2/3)x+6

Answer:

Linear, The rate of change is constant.

Step-by-step explanation:

-3 + 3 = 0

0 + 3 = 3

So x is constant

4 + 2 = 6

6 + 2 =8

So y is constant

can someone help me with this math problem

Answers

Sure I will what do you need help with

Write and evaluate the expression. Then, select the correct answer. The sum of forty-five and a number; evaluate when n = 1. 1 45n; when n = 1. 1, the value is 49. 5. 45 n; when n = 1. 1, the value is 46. 1. 45 – n ; when n = 1. 1, the value is 43. 9. StartFraction n Over 45 EndFraction; when n = 1. 1, the value is 0. 24.

Answers

The sum of forty-five and a number n is 46.1, and the expression that can represent this can be written "45+n" where the value of n is 1.1

What is an Expression?

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The statement that is given to us is" the sum of forty-five and a number", therefore, the expression that will represent this can be written as,

45 + n,

Now, if the value of n is 1.1. Then the sum will be,

[tex]45+n\\\\=45+1.1\\\\=46.1[/tex]

Hence, the sum of forty-five and a number n is 46.1, and the expression that can represent this can be written "45+n" where the value of n is 1.1

Learn more about Expression:

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7. The total cost of producing 475 calculators was $12,825. What is the unit cost (that is, the cost of producing 1 calculator)?

Answers

12,825/475
=
the price to produce one calc is $27
The answer :
475 calculators : $12825 = $27

Explanation:

Do divide only

Find the Surface of the prism 4in 10 in and 18in

Answers

Answer:

Step-by-step explanation:

total surface area = 584 m2

lateral surface area = 504 m2

top surface area = 40 m2

bottom surface area = 40 m2

The students in Suzanne's school are painting a rectangular mural outside the building that will be 15 feet by 45 feet. Scale drawing of the mural is shown. The diagonal is approximately 6.3 units.Write the unit rate for the proportional relationship between lengths on the mural y and lengths in the scale drawing x.

Answers

Answer:

The dimensions on paper are 1.992ft by 5.976ft with a scale factor of 7.53

Step-by-step explanation:

The first step will be to find the diagonal of the rea life mural.

We can use Pythagoras' Theorem to do this.

Diagonal = [tex]\sqrt{15^2 +45^2 }[/tex] =47.43 feet.

Now we have the real-life diagonal, we will now relate the diagonal of the painting outside with the one on paper. We can do this by dividing the two diagonals.

This will be 47.43 / 6.3 units = 7.53.

The scale factor is 7.53

To get the dimensions of the length and the breadth on paper, we divide the outside dimensions by the scale factor.

This will be

Length = 15/ 7.53 = 1.992

Breadth = 45/7.53 = 5.976

Therefore, the dimensions on paper are 1.992ft by 5.976ft with a scale factor of 7.53

Kaj bought three pounds of strawberries for $7.20. What is the price, in dollars per ounce of strawberries?

Answers

Answer:

The amount per pound would be:
$2.40


Step-by-step explanation:

720 divided by 3 = 240
We can then conclude that:
$7.20 divided by 3 = $2.40


Have a great rest of your day
#TheWizzer

Answer:

0.15 dollars, of 15 cents (I believe)

Step-by-step explanation:

3 pounds, 16 oz per pound is 48 oz. 7.20 divided by 48 oz is 0.15, which should be equal to 15 cents. Hope this helps :)

ZN
is tangent to circle OO at point ZZ. If \text{m}\overset{\huge\frown}{ZMB} = 280^{\circ}m
ZMB

=280

, find \text{m}\angle BZNm∠BZN.

Answers

Given tangent, ZN, to the circle and the arc [tex]\widehat{ZMB}[/tex] = 280°, we have that

the angle formed by the chord BZ and the tangent ZN, ∠BZN is 50°

Which method can be used to find ∠BZN?

The given parameters are;

A tangent to the circle O = ZN

[tex]m \widehat{ZMB}} = \mathbf{280^{\circ}}[/tex]

Required:

Angle ∠BZN

Solution;

Please find attached the drawing of the circle and tangent

From the drawing, we have;

∠BOZ = 360° - 280° = 80°

ΔBOZ is an isosceles triangle, which gives;

∠BZO = ∠ZBO

[tex]\angle BZO = \dfrac{(180^{\circ}- 80^{\circ}) }{2} = \mathbf{50^{\circ}}[/tex]

∠OZN = 90° (by definition of a tangent)

∠OZN = ∠BZO + ∠BZN

∠BZN = ∠OZN - ∠BZO

Which gives;

∠BZN = 90° - 40° = 50°

The measure of angle ∠BZN = 50°

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Select the correct answer.
Which of the equations below represents a line perpendicular to the x-axis?
ОА.
I = 3
ОВ.
= 3y
OC.
=y
OD.
I = -3y
Reset
Next

Answers

Answer

The anwser is B

Step-by-step explanation:

I did this test as well earlier this year

Equation x=3 represents a line perpendicular to the x-axis. Therefore, the correct answer is option A.

What is the equation of a line?

The general equation of a straight line is y=mx+c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis.

here, we have,

A) x=3

Graph the line using the slope and y-intercept, or two points.

Slope: Undefined

y-intercept: No y-intercept

The coordinate points are (3, 0) and (3, 1).

B) Graph the line using the slope and y-intercept, or two points.

Slope: 1

y-intercept: (0,0)

The coordinate points are (0, 0) and (1, 1)

C) x=y

Graph the line using the slope and y-intercept, or two points.

Slope: 1

y-intercept: (0,0)

The coordinate points are (0, 0) and (1, 1)

D) x=-3y

Graph the line using the slope and y-intercept, or two points.

Slope: -1/3

y-intercept: (0,0)

The coordinate points are (0, 0) and (-3, 1)

Therefore, option A is the correct answer.

To learn more about the the equation of a line visit:

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#SPJ7

Does a right triangle exist where sin A = sin B = cos A = cos B, where A and B are the two acute angles of the triangle? Provide evidence to support your conclusion, and if possible, find the measures of angles A and B.

Answers

Answer:

Step-by-step explanation:

When you list the trigonometic ratios for both acute angles in a right triangle, you notice some interesting developments.

Let's concentrate on sine and cosine:

Observation from the table above: notice1

In a right triangle, the sine of one acute angle, A, equals the cosine of the other acute angle, B.

If ∠A and ∠B are the acute angles of a right triangle,

sin A = cos B

Since the measures of these acute angles of a right triangle add to 90º, we know these acute angles are complementary. ∠A is the complement of ∠B, and ∠B is the complement of ∠A.

If we write, m∠B = 90º - m∠A    (or m∠A = 90º - m∠B ), and we substitute into the original observation, we have:

      notice4

If θ is substituted for m∠A , we establish the following relationship between sine and cosine:

sincosrule

The sine of any acute angle is equal to the cosine of its complement.

The cosine of any acute angle is equal to the sine of its complement.

Sine and cosine are called "cofunctions", where the sine (or cosine) function

of any acute angle equals its cofunction of the angle's complement.

FYI: What about tangent?

Yes, there is a "relationship" regarding the tangent of the two acute angles (A and B) in a right triangle. It is not, however, the same type of relationship that exists between sine and cosine.

The tangent of ∠A is the reciprocal (flip over) of the tangent of ∠B.

The angles being used in the following examples are acute angles.

ex1

If sin 30º = ½ and cos θ = ½,

find θ.  Solution: Since both trig functions = ½,

30º and θ must be complementary.

θ = 60º

ex2

If sin(3x + 10)º = cos(x + 24)º,

find x.  Solution: In order for the sine and cosine to be equal, the angles must be complementary.

3x + 10 + x + 24 = 90

4x + 34 = 90

4x = 56

x = 14

ex3

If sin(15º) = 0.26 and

cos (15º) = 0.97,

find sin(75º) and the cos(75º).  Solution: The sine of an angle and the cosine of its complement are equal.

15º and 75º are complementary.

sin(75º) = cos(15º) = 0.97

cos(75º) = sin(15º) = 0.26

ex4

In right ΔABC, m∠C = 90º,

sin A = x + 0.1 and cos B = 2x - 0.4. Find x.  Solution: If A and B are the acute angles of a right triangle, sin A = cos B.

x + 0.1 = 2x - 0.4

0.5 = x

Paula's kitten weighs 3 1/2 pounds. Write this weight in the boxes using pounds and ounces.

Answers

Answer:

3 pounds and 8 ounces

Step-by-step explanation:

1 pound is 16 ounces, 1/2 pound is 8 ounces.

If you need further help, let me know!

-profparis

A recipe for a cookie batch calls for 5/8 cup of flour. There are three and three-fourths cups of flour in a bag in the cupboard. How many batches of cookies can you make?

Answers

Answer:

So a batch is 5/8

There are THREE 3/4th cups of flour in the cupboard.

So 3 three fourths so basically
3/4 * 3 = 9/4 or

3/4 + 3/4 + 3/4 = 9/4

9/4 and each batch is 5/8.
9/4 ÷ 5/8 = 72/20 or 3 1/10

3 batches of cookies.

8. Caitlyn has 8 gallons of milk. She uses
3
of the milk to make hot chocolate.
4
1
Then, she uses
of the remaining milk to make cookies.
4
How many gallons of milk does Caitlyn have left after making hot chocolate and
cookies?

Answers

Answer:

115/12

HOPE IT IS THE ANS


In the morning, the temperature was -3°F. By mid-
afternoon, the temperature was 12°F. What was the
change in temperature between the morning and
afternoon?

Answers

Answer:

Step-by-step explanation:

To get from - 3 degrees to 0 takes 3 degrees to do

To get from 0 degrees to 12 takes 12 degrees             Add

Total                                                   15 degrees.

Which expression is a monomial

Answers

3x^0.5
second one for sure

If a triangle only has 150 on one angle is what’s the measure for the rest of them

Answers

Answer:

I think it would be thirty

When added together, the angles of a triangle make 180 degrees. If one angle is 150, then the rest would be split somehow between 30 (because 180 - 150 = 30).

Show the process also please!!​

Answers

360 - 120 = 240

240 / 21 = 11.4

11.4cm

what is the factored form of x2-6x-16 ?

Answers

Answer:

(x + 2)(x - 8)

Step-by-step explanation:

Factorize

x^2 - 6x - 16 =x^2 + 2x - 8x - 16 = x(x + 2) - 8(x + 2) =(x + 2)(x - 8)

How do i write 2x+3y=24 as slope-intercept form?

Answers

Answer:

y = - [tex]\frac{2}{3}[/tex] x + 8

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

2x + 3y = 24 ( subtract 2x from both sides )

3y = - 2x + 24 ( divide all terms by 3 )

y = - [tex]\frac{2}{3}[/tex] x + 8 ← in slope- intercept form

The equation 2x+3y=24 in the slope-intercept form can be written as [tex]y = -\frac{2}{3}x+8[/tex]

From the question,

We are to write the given equation in the slope-intercept form

The slope-intercept form of an equation of straight line is written as

y = mx +c

To write the equation, 2x+3y=24, in the slope-intercept form, we will make y the subject of the equation

[tex]2x+3y=24[/tex]

First, subtract 2x from both sides of the equation

That is,

[tex]2x -2x +3y = 24 -2x[/tex]

This becomes

[tex]3y = 24 -2x[/tex]

Now, divide both sides by 3

[tex]\frac{3y}{3} =\frac{24-2x}{3}[/tex]

∴ [tex]y = \frac{24}{3}-\frac{2x}{3}[/tex]

[tex]y = 8-\frac{2}{3}x[/tex]

In the slope-intercept form, we get

[tex]y = -\frac{2}{3}x+8[/tex]

Hence, the equation 2x+3y=24 in the slope-intercept form can be written as [tex]y = -\frac{2}{3}x+8[/tex]

Learn more here: https://brainly.com/question/20076300

Tutorial
Some players on a co-ed basketball team compared the total number of points they
scored over the course of a year.
Points scored in basketball
Hunter
1
5
Katie
1
5
Jenny
5
()) If there were 50 points scored overall, how many more were scored by Jenny than by
Hunter?

Answers

Answer:

20 points

Step-by-step explanation:

If Jenny scored 3/5th of 50 points then:

Jenny = 3/5 × 50 = 30 points

If Hunter scored 1/5th of 50 points then:

Hunter = 1/5 × 50 = 10 points

Difference in points between Jenny and Hunter = 30 - 10 = 20 points

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