A school has 1800 students on its roll, 40% of whom are girls. How many boys are there in the school?

please send me pictures solution please​

Answers

Answer 1
you can divide 1800 by 10 and times it by 4 giving a answer of 720

Related Questions

Which equation can be solved to find the measure in degrees of ZPQS?
o - 60 - 180
2- 60 - 180
20-60-90
-60-90

Answers

0-192 29-17

Equation can be solced to find t

A goalie make 12 saves in 3 games. What is the rate of saves per game?

Answers

Answer:

Step-by-step explanation:

No of saves in 3 games = 12

Rate of saves per game = 12 ÷ 3 = 4

The admission ticket for Pat Pat Zoo is $1.50 for children and $4.00 for adults. On a certain day, 2200 people went to the zoo and $5050 was collected. How many children and how many adults went to the zoo that day?

Answers

Answer:

1380 children and 820 adults went to the zoo that day

Step-by-step explanation:

System of Equations

Define the following variables

x = number of children that went to the zoo

y = number of adults that went to the zoo

On a certain day,  2000 people went to the zoo, thus:

x + y = 2000

Solving for x:

x = 2000 - y        [1]

The admission ticket is $1.50 for children and $4.00 for adults and that same day, $5050 was collected, then:

1.50x + 4y = 5050       [2]

Substituting x from [1]:

1.50(2000 - y) + 4y = 5050

Operating:

3000 - 1.50y + 4y = 5050

3000 + 2.5y = 5050

Subtracting 3000

2.5y = 5050 - 3000 = 2050

Dividing by 2.5

y = 820

From [1]

x = 2200 - 820 = 1380

1380 children and 820 adults went to the zoo that day

which system of linear inequalities is represented by the graph?

Answers

Answer:

C

Step-by-step explanation:

what is the diameter of a pond with a area of 4069.44

Answers

Answer:

72

Step-by-step explanation:

Formula: A= 3.14r^2

4069.44^2 = 3.14r^2

(divide both sides by 3.14)

1296=r^2

(find sqr root of 1296)

36=r

to find the diameter with the radius, multiply radius by 2... 36*2= 72

The diameter of a pond with an area of 4069.44^2 is 72!

Hope this helps anyone :)

What is the missing value in the proportion 4/5 = x/30?

A.) 6

B.) 24

C.) 37.5

D.) 29

Answers

Answer:

[tex]\displaystyle x = 24[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle \frac{4}{5} = \frac{x}{30}[/tex]

Step 2: Solve for x

[Multiplication Property of Equality] Cross-multiply:                                      [tex]\displaystyle 5x = 120[/tex][Division Property of Equality] Divide 5 on both sides:                                [tex]\displaystyle x = 24[/tex]

click on the measurements that is equal to 20 cups.

Answers

Measurement of 5 quarts is equal to 20 cups.

What are Measurements?

Measurement is the method of comparing the properties of a quantity or object using a standard quantity.

Measurement is essential to determine the quantity of any object.

We have the measurement, 1 cup = 1/4 quarts

Let x be the number of quarts for 20 cups.

By using proportion,

1 / (1/4) = 20 / x

Cross multiplying,

x = 20 × (1/4)

x = 5

Hence the measurement of 20 cups is equal to 5 quarts.

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Thee measurement equals to 20 cups is 5 quarts.

Thus, option (a) is correct.

To determine which measurement is equal to 20 cups, compare the conversion factors between cups and each of the given measurements.

As, the conversion factors are:

1 quart is equal to 4 cups 1 pint is equal to 2 cups 1 gallon is equal to 16 cups 1 fluid ounce is equal to 0.125 cups

1. 5 quarts

= 5 x  4 cups/quart

= 20 cups

2. 40 pints

= 40 x  2 cups/pint

= 80 cups

3. 1 gallon

= 1 x  16 cups/gallon

= 16 cups

4. 320 fluid ounces

= 320 x  0.125 cups/fluid ounce

= 40 cups

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please help as soon as possible!

Estimate the solution to the system of equations.
You can use the interactive graph below to find the solution.


y = 4x - 2

y = x + 3


Choose 1 answer:

A. x = 2/3, y = 3 2/3

B. x = 2/3, y = 4 2/3

C. x = 1 2/3, y = 3 2/3

D. x = 1 2/3, y = 4 2/3

Then it shows a graph like the one shown in the picture.

Answers

A hope this helpful

Answer:

It's D.

Step-by-step explanation:

PLEASE HELP! thank you!

Answers

Answer:

C

Step-by-step explanation:

I believe it is c if I counted right

Ava arrived at a restaurant for dinner at 6:14. She placed her order, ate, and paid the bill.
She left the restaurant 2 hours and 28 minutes later. What time was it when Ava left the
restaurant?
A 9:42
B 8:18
C 8:42
D 4:18

Answers

6:14 + 2 hours = 8:14
8:14 + 20 minutes = 8:34
8:34 + 8 minutes = 8:42
C

What’s the solution for y=2x+7 y=3x-1

Answers

Answer:

x=8 and y=23

Step-by-step explanation:

Rewrite equations:

y=2x+7;y=3x−1

Step: Solve y=2x+7 for y:

y=2x+7

Step: Substitute 2x+7 for y in y=3x−1:

y=3x−1

2x+7=3x−1

2x+7+−3x=3x−1+−3x(Add -3x to both sides)

−x+7=−1

−x+7+−7=−1+−7(Add -7 to both sides)

−x=−8−x−1=−8−1

(Divide both sides by -1)

x=8

Step: Substitute 8 for x in y=2x+7:

y=2x+7

y=(2)(8)+7

y=23(Simplify both sides of the equation)

expand the expression 4(x-5)

Answers

Answer:

4x-20

Step-by-step explanation:

4x-20 :))))) you’re welcome

HELP ASAP ASPA HELP HELP

Answers

Answer:

proportional READ BELOW

Step-by-step explanation:

so its going by multiplying by 8's bc of the -10

so i think it is

id k tho  havent done negatives

please dont sue me if im wrong

42+24n
The factored form is

Answers

Find the Greatest Common Factor (GCF):
GCF = 6

Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF):
6(42/6 + 24n/6)

Simplify each term in parentheses:
6(7 + 4n)

DONE !!

The expression 42+24n in factor form is  6(7+4n).

What is Expression?

An expression is combination of variables, numbers and operators.

The given expression is 42+24n

Forty two plus twenty four n.

We need to factor out the expression.

TO do this we have to find the greatest common factor of 42 and 24

The factor of 42 are 1, 2, 3, 6, 7, 14, 21 and 42

The factors of 24 are  1, 2, 3, 4, 6, 8, 12 and 24.

The common factors are 1,2,3, and 6.

The greatest common factor is 6.

S0 the expression in factor form is  6(7+4n)

Hence, the expression 42+24n in factor form is  6(7+4n).

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What is the measure of?look at the picture

Answers

Answer:

C, 100 degrees

Step-by-step explanation:

180-80=100

Justin bought 3 shirts for $18 each, 2 pair of socks for $3.99 a pair, and a pair of
slacks for $45.00. The sales tax rate is 8.5%. How much did he pay?

Answers

The answer would be- P=$116.07 because you have to x all the numbers then add some

A survey was conducted to see how many phone calls people made daily. The results are displayed in the table below:

Answers

From the given frequency table,

Frequency represents the number of people who made the calls.

Total number of people who made the calls = 16 + 11 + 5 + 3 + 1

                                                                          = 36

Number of people who made less than 13 calls = 16 + 11 + 5

                                                                                 = 32

Number of people who made at least 9 calls = 5 + 3 + 1

                                                                            = 9

Percentage of people who made at least 9 calls = [tex]\frac{\text{Number of people who made at least 9 calls}}{\text{Number of people who made the calls}}\times 100[/tex]

= [tex]\frac{9}{36}\times 100[/tex]

= 25%

Difference in the number of people who made the calls between 5-8 calls than 13-16 calls = 11 - 3 = 8

Learn more,

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This is my last question if you understand this please answer my question.

Answers

Answer:

3. reflective property

4.AE=CE

5.<AED=<CED 5.SSS congruence

0.9d-2.1f
Helpp!!❗‼️

Answers

Step-by-step explanation:

0.9(17) -2.7(3) =

15.3-8.1

=7.2

PLEASE HELP WITH SEVEN AND EIGHT!!!

Answers

"Bisect" means cuts in half perfectly. In other words, 66° = 3x. calculate and you get x=22°

y+10 = 56

y= 56-10

y= 46°

For 7 the answer is x=22 and for 8 y=18

help again pleaseee and tank ouu

Answers

Answer:

H

Step-by-step explanation:

ST is similar to EF and WR is similar to CD.

Hope it helps.

x2+7x+12=0 please help

Answers

Answer:

x has the values -4 and -3

Step-by-step explanation:

x² + 7x + 12 = 0

x² + 3x + 4x + 12 = 0

x(x + 3) + 4(x + 3) = 0

(x + 4)(x + 3) = 0

HELP I NEED HELP ASAP


The perimeter of a rectangle is 8x-6 units. of the width is x-4 units , what is the length, in units, of the rectangle

A. 9x-10
B. 3x-5
C. 3x+1
D. 7x-2

Answers

Answer:

Step-by-step explanation:

(9+10+1/1+1(1)-21+20)/2

Answers

Answer:

10

Step-by-step explanation:

(9 + 10+ 1/1 + 1(1) - 21 + 20)    / 2

(9 + 10 + 1 + 1 -21 +20)          /2

(21 - 21 + 20)              /2

(20) / 2

10

Hope this helps

PLZ MARK BRAINLIEST

The answer is 10
20/2-21+20/2
20/-19+20/2
20/1/2
20/2
=10
Hope this helps!

Question 12
230-
90°
a) 50
b) 20
c) 25
d) 45

Answers

Answer:

45 because it can't be great then 50 or less then 25 and 20

Answer:

d or c id try d first

Step-by-step explanation:

The amount of​ money, y, pizzeria K makes by selling x pizzas can be modeled by the equation y = 13x. The relationship of the amount of money pizzeria L makes is shown in the following graph. Which pizzeria makes more money per​ pizza?

Answers

Answer:

Step-by-step explanation:

Complete Question:

The amount of money, y, pizzeria W makes by selling x pizzas can be modeled by the equation y = 15x. The relationship of the amount of money pizzeria L makes is shown in the following graph.

Which pizzeria makes more money per pizza?

A. Pizzeria L makes more money per pizza.

B. Pizzeria W makes more money per pizza.

C. They make the same amount per pizza.

Answer:

B. Pizzeria W makes more money per pizza.

Step-by-step explanation:

The proportional relationship showing how amount of money made(y) is related to the amount of pizzas sold (x) for pizzeria W is given by the equation y = 15x.

the constant of proportionality/unit rate, k = 15.

This represents the amount in dollars, made per pizza.

So, Pizzeria W makes $15 per pizza.

For Pizzeria L, using any point on the line, say, (2, 24),

k = y/x = 24/2 = 12.

This represents the unit rate, which is the amount Pizzeria L makes per pizza.

Thus, Pizzeria L makes $12 per pizza.

We can conclude that, Pizzeria W makes more money per pizza.

Answer:

L

Step-by-step explanation:

find the radius of each circle with the given dimensions. d = 29 m

Answers

Answer:

14.5

Step-by-step explanation:

The radius is half the diameter.

29/2=14.5

Carla's Plumbing charges $25 for a service call and $28 per hour, h, for labor for any repair. The total cost, t, for a repair can be calculated using the equation below. 28h+25=t Mr. Callahan paid a total of $165 for a repair. How many hours did it take to complete his repair?

Answers

Answer:

Step-by-step explanation:

HELPPPPPP its 10 grade geometry

Answers

:D:D:D:D:D:D:D:D:D:D

A 10% increase followed by another 10% increase is not the same as a total increase of
20%.
What is the total percentage increase?

Answers

Answer:

21%

Step-by-step explanation:

Another 10% increased means it becomes 110*110/100 = 121. The first 10% increase means the second 10% increase will be an actual 11% increase from the original, so it will be a total of 21%.

Answer:

21%

Step-by-step explanation:

Because the first 10% increase is calculated as 10% of what you started with. The second 10% is 10% of what you started with plus 10% of the increase caused by the original 10% increase.

Let's do the maths…

Let's start with 100 to make things easy.

We know that 10% of 100 is 10.

We know that 20% of 100 is 20.

So if we increase 100 by 10% we get 110.

If we increase 100 by 20% we get 120.

Now lets do the 10% plus 10%.

From the first 10% increase we were left with 110.

Now if we take 10% of the 110 we have 11.

Add that to the 110 and we get 121.

This is why people are surprised how quick a lone can rise if we don't pay it off. We are paying interest on the basic sum plus interest on the interest, then interest on the interest on the interest.

HOPE THIS HELPS YOU

Follw me = 10 thanks

Mark as brainliest = 10 thanks

1 thanks to me = 2 thanks

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