Hello I need help really quick, it's about percentages

Hello I Need Help Really Quick, It's About Percentages

Answers

Answer 1
30 students total, 12 boys

18/0.6 = 30
30-18=12
To check answer: 30*0.4 = 12
Answer 2

Answer:Let x be the total number of students in the class.

60% of x = ? (number of girls)

40% of x = 18 ( number of boys)

therefore, (2/5)x=18

x=45 ( Total number of students)


Related Questions

Which pair of sneakers has the lowest sale price?
20% off $35
15% off $30
30% off $38
10% off $29

Answers

15% of of $30 is the lowest sales price

Larry had 20 socks in a drawer. He had 10 blue socks, 6 black socks, 2 white socks and 2 brown socks. Larry pulled out a brown sock. If he did not replace the sock, what color will the second sock he pulls out MOST likely be?

A: black
B: blue
C: brown
D: white

Answers

It would be blue because the more blue socks so it’s blue

Answer:

Blue

Step-by-step explanation:

The following data points represent last year’s revenue (in thousands of dollars) for each Herman Huagoes location

Answers

Answer:

142

Step-by-step explanation:

Since the median is defined as the data point that separates the lower half from the upper half.

Odd # data points: Middle value of an ordered pair with an equal amount of data points on both sides.Even # data points: Average of two middle values in an ordered pair with an equal amount of data points on both sides.

Since there is an even amount of data points, to find the median, identify the two middle values, which are 137 and 147. Then add them together and divide by 2 to compute the average →

137 + 147 / 2 → 284 / 2 → 142.

Thus the median revenue is

142 thousand dollars

MODELING REAL LIFE A softball has a volume of about 29 cubic inches. Find the radius of the softball. Round your answer to the nearest tenth.
The radius of the softball is about___inches.

Answers

the equation for volume is V=4/3 * pi * radius cubed.

Since we know 29 is the volume, the equation is 29=4/3 * pi * radius cubed.

To get the radius alone, first divide 29 by 4/3. You get 21 3/4 or 87/4 or 21.75 (whichever way).

Then divide 21.75 by pi (3.14). You get 6.92675159236

To get the radius alone, find the cubed root of 6.92675159236.

The answer is 1.90623543217, but I'd rounded to 1.91

Answer: 1.91

Step-by-step explanation: the equation for volume is V=4/3 * pi * radius cubed.

Since we know 29 is the volume, the equation is 29=4/3 * pi * radius cubed.

To get the radius alone, first, divide 29 by 4/3. You get 21 3/4 or 87/4 or 21.75 (whichever way).

Then divide 21.75 by pi (3.14). You get 6.92675159236

To get the radius alone, find the cubed root of 6.92675159236.

The answer is 1.90623543217, but I rounded it to 1.91

Consider the graph of the function
s (x ) = x² + 6x + 9.

Answers

Answer:

s
x=[tex]x^{2}[/tex]+6x+9

Step-by-step explanation:

I know what I am talking about.

idk

Jaya's coach agreed to buy ice cream for all of the team members. Ice cream cones are $2.40 each. Write and solve an equation to find how many cones the coach can buy with $30.

Let n represent the number of cones the coach can buy.

2.4 + n = 30 ; n = 27.6

n(2.4 + 4) = 30 ; n = 4.69

30 - 2.4 = n ; n = 27.6

2.4n = 30 ; n = 12.5

A rectangle has a length of (x + 5) centimeters and a width of 5 centimeters. If the perimeter is 35 centimeters, what is the length of the rectangle?


x = 7.5

length = 10

length = 12.5

x = 5

Answers

Answer:

A  2.4 + n = 30 ; n = 27.6

Step-by-step explanation:

2.4+n=30;n=27.6 I think this is it check again to make sure hope this helps

Please, Help Will give 25 points<3

Answers

Answer:

15.7 ft

Step-by-step explanation:

c = 2[tex]\pi[/tex]r

r = d/2

r = 2.5

c = (2 x 3.14) 2.5

c = 6.28 x 2.5

c = 15.7

15.7 is your correct answer

A number line going from negative 60 to negative 50. An open circle is at negative 54. Everything to the right of the circle is shaded.
Which inequality has the solution set shown on the graph?
-54n < 1080
-54n > 1080
594 > -11n
594 < -11n

Answers

Answer:

594 > -11n

Step-by-step explanation:

The solution is

n > -54

Multiply both sides by -11:

-11n < 594

which is the same as

594 > -11n

Answer:The correct answer is 594> -11n   (C)

Step-by-step explanation:

I got it right on edge <3 bye lovely

for each of the number lines, write an absolute value equation in the form |x-c|=d, where c and d are some numbers, to satisfy the given solution set.

Answers

Answer:

|z-1|=5

Step-by-step explanation:

find the midpoint which is c(1) and then d is the distance(5) mark as bainliest

The midpoint between -3 and 7 is (7 - 3) / 2 = 4 / 2 = 2. Therefore, c = 2. 3. The distance between -3 and 7 is |7 - (-3)| = 10. Therefore, d = 10. 4.

To write an absolute value equation in the form |x-c|=d, where c and d are numbers, to satisfy a given solution set on a number line, you need to consider the distance between the solutions and a specific point on the number line.

Here's a step-by-step approach to finding the equation:

1. Identify the solutions on the number line.

Let's say the solutions are represented by points A and B.

2. Determine the midpoint between points A and B.

This midpoint will be the value of c in the equation.

3. Calculate the distance between points A and B.

This distance will be the value of d in the equation.

4. Write the absolute value equation using the calculated values of c and d.

The equation will be |x - c| = d.

Let's look at an example:

Suppose the solutions on the number line are represented by points -3 and 7.

We'll find the equation that satisfies this solution set. 1.

The solutions are -3 and 7. 2.

The midpoint between -3 and 7 is (7 - 3) / 2 = 4 / 2 = 2.

Therefore, c = 2. 3.

The distance between -3 and 7 is |7 - (-3)| = 10.

Therefore, d = 10. 4.

The absolute value equation that satisfies the solution set is |x - 2| = 10.

To know more about midpoint here

https://brainly.com/question/12223533

#SPJ2

A party had 4 4/3 pizzas left. If three people split what is left, how much pizza does each person get?

Answers

Answer:

they will have to get 1.584 each

Answer:

1 7/9

Step-by-step explanation:

4 4/3 = 5 1/3

5 1/3 / 3 = 16/9 or 1 7/9

need help please :).

Answers

The answer is A= 12.57.
the answer is 12.5 inches

What is the area, in square yards, of the base of the fountain?

Answers

Answer:

there is no fountain?

Step-by-step explanation:

Is there a picture of the fountain?

This line graph shows how the temperature changed during one week.
What was the difference between the highest temperature and the lowest temperature during the week?

Answers

Answer:

25°C

Step-by-step explanation:

The highest temperature in the week was recorded on Monday, at 16°C.

The lowest temperature in the week was recorded on Friday, at -9°C.

To find our answer, we must set up a subtraction problem to find the difference between the two.

16 - (-9) = 25

Find the distance between each pair of points.

3 units

2 units

5 units

6 units

4 units



--------->C(-4, 1) and D(1, 1)

---------> G(3, -5) and H(6, -5)

---------> E(-2, -1) and F(-2, -5)

---------> A (5, 4) and B( 5, -2)

WILL MARK BRAINLIEST

Answers

Answer: distances are below <3

C & D : 5 units .

G & H : 3 units .

E & F : 4 units .

A & B : 6 units .

Step-by-step explanation: your welcome <3 .

CD: 5
GH: 3
EF: 4
AB: 6

use the distributive property to fill in the blanks below
7 x (9 + 1) = (7 x _) + 7 x _)
please help my mom is gonna m me if i don't get this stuff done

Answers

7x(9+1)=(7x9)+7x1) 7x9 is 63 plus 7x1 which is 7 is 70 so the answer is 70

Which expressions are equivalent to the given expression? Select two options. (–2.4a – 1.8b) – (–3.8a – 4.4b) + (2.0a + 3.0b) 3.4b – 3.2a 3.4a – 3.2b 5.6b + 3.4a 3.2b + 3.4a 3.4a Plus 5.6b
Will mark brainly!!

Answers

Answer:

the answer would be (-3.8a-4.4)

Step-by-step explanation:

Answer:

3 and 5 or c and e

Step-by-step explanation:

Got it right edge 2022

Given: KLMN is a parallelogram, LF is perpendicular to KN, LD is perpendicular to NM, angle FLD = 35. Find angles of KLMN

Answers

The question is four parts, It is required the angles of parallelogram KLMN

So, It is required ⇒ ∠K  , ∠L  , ∠M  and ∠N

See the attached figure which represents the explanation of the problem

========================

Part (1): Find  ∠N:

==============

in the shape FLDN

∵ LF ⊥ KN  ⇒⇒⇒ ∴ ∠LFN = 90°

∵ LD ⊥ NM ⇒⇒⇒ ∴ ∠LDN = 90°

∵ The sum of all angels of FLDN = 360°

∵ ∠FLD = 35°

∴ ∠FLD + ∠LDN + ∠DNF + ∠LFN = 360°

∴ 35° + 90° + ∠DNF + 90° = 360°

∴ ∠DNF = 360° - ( 90° + 90° + 35°) = 360° - 215° = 145°

∴ The measure of angle N = 145°

=============================

Part (2): Find  ∠M:

==============

∵ KLMN is parallelogram , ∠N = 145°

∴ The angles N and M are supplementary angles ⇒ property of the parallelogram

∴ ∠M + ∠N = 180°

∴ ∠M = 180° - ∠N = 180° - 145° = 35°

∴ The measure of angle M = 35°

================================

Part (3): Find  ∠L:

==============

∵ KLMN is parallelogram , ∠M = 35°

∴ The angles N and M are supplementary angles ⇒ property of the parallelogram

∴ ∠M + ∠KLM = 180°

∴ ∠KLM = 180° - ∠M = 180° - 35° = 145°

OR ∠KLM = ∠N = 145° ⇒⇒⇒  property of the parallelogram

∴ The measure of angle KLM = 145°

===================================

Part (4): Find  ∠K:

==============∵ KLMN is parallelogram , ∠N = 35°

∴ The angles N and M are supplementary angles ⇒ property of the parallelogram

∴ ∠K + ∠N = 180°

∴ ∠K = 180° - ∠N = 180° - 145° = 35°

OR ∠K = ∠M = 35° ⇒⇒⇒  property of the parallelogram

∴ The measure of angle K = 35°

Answer:

m∠K= 35°, m∠KLM= 145°, m∠M= 35°, m∠N = 145°

Step-by-step explanation:

Evaluate the expression when a=4, b=15, and c= 16.
4a +3

A) 60
B) 56
C) 57
D) 59

Answers

Answer:

Given that;

a = 4

We plug this value into our equation, and solve.

So:-

4a + 3

4(4) + 3

16 + 3

= 19

(this isn't related to any of your answers, let me know down in the comments if you distorted or misquoted anything in your equation)

This would be impossible to answer. The reason is because none of the answer match the actual answer of the problem, did you write the equation wrong or is that all the options for the answer?

It would be 4(4)+3 because a=4 meaning 4•4=16 + 3 = 19

I also need help on this one smh

Answers

Answer:

C. 176.6 Square feet (I think)

Step-by-step explanation:

I tried many different ways and got three of the answers above but I think this is the right one.

The equation to find area of a circular cone base: [tex]A= \pi r^2[/tex]

We are given the diameter (15 Feet) but we need to find the radius. So we use the diameter to radius formula: [tex]r = \frac{d}{2}[/tex]Plug in numbers: [tex]r=\frac{15}{2}[/tex] ≈ [tex]7.5[/tex]Use the Area formula now that you have radius: [tex]A=\pi 7.5^2[/tex]Solve and get = [tex]a = 176.71458676[/tex]Looking at the options the closest one to our answer (off by one-tenth) is C.

Sorry if you get this wrong. I tried lol.

Preston is making cookies. He has 4 over 5 cup of flour in a bag. He then used two 1 over 10 cups of flour for his recipe. Which of the following best explains the amount of flour left in the bag?

Group of answer choices

A.5 over 10 , because 4 over 5 minus 2 times 1 over 10 equals 4 over 5 minus 2 over 10

B.6 over 10 , because 4 over 5 minus 2 times 1 over 10 equals 4 over 5 minus 2 over 10

C.6 over 10 , because 4 over 5 minus 2 times 1 over 10 equals 4 over 5 minus 3 over 10

D.5 over 10 , because 4 over 5 minus 2 times 1 over 10 equals 4 over 5 minus 3 over 10

Answers

Answer:

I'm pretty sure the answer is C. 6 over 10 , because 4 over 5 minus 2 times 1 over 10 equals 4 over 5 minus 3 over 10

Step-by-step explanation:

4/5 - 2(1/10) =

4/5 - 2/10 =

8/10 - 2/10 =

6/10

it’s c because it’s 6 over 10

hey! This is due at like 11 pm!

Answers

Answer:

[tex]7[/tex]

Step-by-step explanation:

Use the Pythagorean Theorem

[tex]a^2 + b^2 = c^2[/tex]

[tex]a[/tex] and [tex]b[/tex] are either opposite or adjacent

[tex]c[/tex] is the hypotenuse.

1. Look for the right angle. (the little box). The right angle "points" to the hypotenuse. In this case, the hypotenuse is 25.

2. Because we know the hypotenuse is 25. We know that 24 is our adjacent. Meaning our missing side is the opposite.

3. Plug in the numbers. [tex]24^2 + b^2 = 25^2[/tex]

4. Solve:

[tex]24^2 + b^2 = 25^2[/tex]

[tex]576 +b^2=625[/tex]

[tex]b^2 = 625-576[/tex]

[tex]b^2 = 49[/tex]

[tex]\sqrt{b^2} = \sqrt{49}[/tex]

[tex]b = 7[/tex]

Hope this helps! Lmk if you have questions.

It’s seven you use square root plug in and you got your answer

A local store buys video games from the manufacturer for $15.99. They mark up the price of the game 250%. What is the selling price of the video game? Round your answer to the nearest cent.

Answers

The answer for the above question wherein we are given the cost price and mark up price and we have to find the selling price is $39.98 after rounding it to the nearest cents.

The method of calculation for the same computation is as follows:

Firstly, the cost price of the video game is $15.99.

Second, the merchant is 250% overcharged for the game. Therefore, we would have to calculate the 250% of $15.99 as it would give us the selling price. We are making use of the following formula Selling price = markup price/100 × Cost price. Applying this formula we would get the following solution:

$15.99 × 250/100 = $ 39.975.

Rounding to the nearest cents we would get our final answer as $39.98. Hence, the selling price of the video game is $39.98.

Learn more about selling price at:

https://brainly.com/question/27796445

Alliance Cannery received an order for 384 cans of food. The order can be made up of a combination of cans of fruit, which are processed at a rate of 24 cans per minute, and cans of vegetables, which are processed at a rate of 64 cans per minute.

x = number of minutes for fruit cans

y = number of minutes for vegetable cans

Which of the linear equations expresses the situation?

3x + 8y = 384
24x + 64y = 384
64x + 24y = 384
24x + 64y + 384 = 0

Answers

Answer:

The correct answer is B

(dont pick C just because someone said its better)

Step-by-step explanation:

Answer:

Im pretty sure its 24x + 64y = 384   Aka B

Step-by-step explanation:

What is the answer to this question?

Answers

the 1 one is -1, -1 -2 -1 -1 -3 -3 -3
1 I hope this helped you a lot

help, i will mark brainliest

Answers

Answer:

a is 4x (the second one only)

b is 4 * 9y-4 * 5 and 4(9y-5)  (the first and last one)

Step-by-step explanation:

a: x+x+x+x=4x

b: 4 * 9y=36y and -4 * 5=-20

(and 4 * -5 also equals -20)

Answer:

here is the first one 4x

1. 4x

2. 4(9y-5)

for the second one 4(9y−5)

Step-by-step explanation:

I worked hard lol so pls mark

The fractions 1/2 and 3/5 are terminating decimals. The fractions 1/3 and 1/7 are repeating decimals.

Without using a calculator, how can you determine in a fraction will repeat or terminate? Give an additional example of a fraction that repeats.

Answers

Step-by-step explanation:

A terminating decimal is a decimal that doesnt repeat, it just stops. A repeating decimal is a decimal that goes on forever, it never stops.

Answer:
To determine if a fraction will repeat or terminate, first you need to turn it into a decimal, then you can see if it repeats or terminates.

An example of a fraction that repeats is 1/3

Please Help me!!!
What is the volume of a cylinder with a radius of 4 and a height of 9?
-----
A. 13π
B. 36π
C. 72π
D. 144π

Answers

Answer: D

Explanation:
Area of cross section= π x 4^2 = 16π
Volume = 16π x 9 = 144π

Answer:

144.1π cubic units

Step-by-step explanation:

Utilize the volume formula V = (pi)r^2h, where r is the radius and h is the height:

Here V = (pi)(4^2)(9)  ≈  (22/7)(16)(9) ≈ 144.1π

Use the graph to write a linear function that relates y to x .

Answers

Answer:

Y=Mx-c this is the formula

Step-by-step explanation:

Answer:

y = (4/3)x + 2

Step-by-step explanation:

It's immediately obvious that the y-intercept of this graph is (0, 2).  Another point on the graph is (6, 10).  Thus, the slope of the line is

        change in y           10 - 2

m = --------------------- = ---------------- = 8/6 = 4/3

         change in x           6 - 0

Therefore the equation of this line in slope-intercept form is

y = (4/3)x + 2

When finding the distance on a coordinate plane, what MUST be used? 2. What is the intersection of the X and Y-axis called?
NEED HELP ASAP

Answers

Answer:

the Pythagorean Theorem

Step-by-step explanation:

Used to find distance on a coordinate plane

Evaluate the expression for the given value.
a^2 when a= 3/4 a^2=

Answers

a^2=a*a=(3/4)*(3/4)=9/16
Brainliest pls!
a^2=a*a=(3/4)* (3/4) =9/16
Mark Me brainliest please i need some points lol
Other Questions
A chemical engineer working for a large chemical products company was asked to make a recommendation about which of three mutually exclusive revenue alternatives should be selected for improving the marketability of personal care products used for conditioning hair, cleansing skin, removing wrinkles, etc. The alternatives (X, Y, and Z) were ranked in order of increasing initial investment and then compared by incremental rate of return analysis. The rate of return on each increment of investment was less than the company's MARR of 17% per year. The alternative to select is: Group of answer choices Easy Question!What is the value of x? Write the equation of the line that passes through the points (3,5) and(-5,0). Put your answer in fully reduced point-slope form, unless it is avertical or horizontal line. PLEASE HELP, i will give BRAINLIEST to the best answer. Kerry bought a new kettle which was described as being pink on the outside of the box. However, when Kerry opened the box the kettle was actually blue in colour. Does Kerry have any rights as a consumer? health is the gretest wealth ?? in long The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as L = 10 log StartFraction I Over I 0 EndFraction, where I 0 = 10 Superscript negative 12 and is the least intense sound a human ear can hear. What is the approximate loudness of a rock concert with a sound intensity of 101?. Solve for y1/2y + 1 = 2 Amir wants to buy a new MP3 player that costs $76.50. If he saves $8.50 each week, how many weeks will it take Amir to save enough money to buy the MP3 player? * Natasha is measuring the angles of a triangle. She measures the first two angles and gets 60 and 80. What should be the measure of the third angle? *1 point What does number 8 wire mean to New Zealanders? what is 333333,3333333333,000 x 2,000,000,000,000,000,000 A man who weights 900N stands on a platform scale in a elevator. The elevator has a mass of 4000kg; the reading scale is 700N. What is the direction of the net force acting in the man 4(2a + 3) < 3(a - 1) How do I balance _Zn+_HCl_ZnCl_+H2 celcia diease is a condition that prevents people from eating food products that contain glunten. Gluten is protien compound found in some foos such as whaet products. For people with celiac disease,a protein in gluten interferecs with the absorption of variuos nutrients, minerals, and vitamins. which body system is responsible for breaking down gluten what is the differances between biography and autobiography Explain the Paragraph tag and its attributes. The_____________is the time dedicated to recovery between sets and exercises. It has a dramatic effect on the outcome of the training program. Choose the correct sign that compares these two numbers.0.155 ___ 0.115A 0.115 0.155D 0.155 < 0.115