The ratio of the number of boys and girls in the class is 4:3. There are 45 students in a class. How many students are boys?

Answers

Answer 1

Answer:

26

Step-by-step explanation:

as the ratio is given you should divide ratio of boys by total ratio and multiply it by the total number of students, kinda like how in percentages you divide partial value/total value x 100, just in this case the total is 45 instead of 100. So [tex]\frac{4}{7} * 45[/tex] = 25.7 which have to be rounded to 26


Related Questions

Which graph line represents an equation of a line with a slope of -2 and a point on the line of (-1, 2)

Answers

Answer:

purple

Step-by-step explanation:

y = -7⁄2 x + 86
y = -7⁄2 (10) + 86
y = 51 points

Answers

Answer:

I think you are incorrect

Step-by-step explanation:

this was the answer i got 121

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Select all the expressions whose value is larger than 100.
a. 120% of 100
b. 50% of 150
c. 150% of 50
d. 20% of 800
e. 200% of 30
f. 500% of 400
g. 1% of 1,000

Answers

Answer: A, D, F

Step-by-step explanation: A: 120 B: 75 C: 75 D: 160 E: 60 F: 2000

G: 10

a contractor hires 150 men to pave Philip Goldson highway in 30 days. How many men will he hire to do the same work in 20 days?​

Answers

Answer:

225 men

This conversion leads to the answer:

30 days → 150 men1 days → (150 *30) men1 days → 4500 men20 days → (4500/20) men20 days → 225 men

A 15ft ladder is leaning up against a wall. The top of the ladder makes a 12° with the wall, how far is the base of the ladder from the wall?​

Answers

Step-by-step explanation:

[tex]the \: length \: of \: the \: ladder \: becomes \: the \: hypotenuse \: [/tex]

[tex]the \: base \: becomes \\ = \sin( \alpha ) \times hypotenuse \\ = \sin(12) \times 15 \\ = 3.119ft[/tex]

Hi please help with an explanation as well, I’ll reward branliest!!!

Answers

Answer:

1. B = 6 m²

2. h = 2 m

3. V = 12 m³

Step-by-step explanation:

the base is a right triangle

Then

[tex]B=\frac{3\times 4}{2} =6\ m^{2}[/tex]

____________

The height of the prism is the length of the segment that join the base to its opposite face

Then

h = 2m (given)

___________

The volume of the prism :

[tex]V=B\times h=6\times 2=12 m^3[/tex]

Pleaseeeeee helppp!!!!! Will mark brainliest!!

Answers

Answer:

the first one (3x-2)(2x-3)

The answer is 1,2 and 5 are factored
4 is not factored because it can be factored by y

30-60-90 triangles and 45-45-90 triangles
What are the ratios that correspond?
My math teacher says its x, √3x, 2x and x, x, √2x. But I’ve seen others do it x, x √3, 2x and x, x, x √2
Which is correct? Thank you

Answers

My math teacher did it the same way so I would go with your teacher's way

You find an apartment which charges 925 a month rent. each year the rent increases by 6% a. write a sequence that represents the rent paid each year for the first 5 years.

Answers

Answer:

In the first 5 years, 138,750$ worth of rent will already have been paid.

Step-by-step explanation:

Since you have to pay 925$ a month worth of rent, in only 1 year, 5,550$ rent money will already have been payed. Now, multiply 925 x 5 x 30 = 138,750. Since the rent increases by 6% every year, in the first 5 years it would have already increased to 30%. So therefore, you would have to pay 138,750$ money worth of rent.

help me please it’s almost due at 10 am

Answers

Answer:

a no. is the answer

Step-by-step explanation:

b=a+13

or, 14 = 1+13

or, 14= 14 {True}

Answer:

b=a+13

b=1+13

b=14

again,

b=a+13

b=6+13

b=19

so the relationship between a & b is b=a+13

perform the indicated operation 7/2x-2/3x

Answers

Answer:

Ans: n−√5

Step-by-step explanation:

The difference of x and a number is 6. What is the other number?

Answers

Answer:

Answer: The other number is y = x + 6.

Step-by-step explanation:

A’B’C’ is a reflection of ABC over the y_axis. What is the length of A’C’?

Answers

~Denki~

Answer:

the length of "AC" should be the same as it was before it was reflected over the y-axis.

(there is no picture so i cant get as specific as intended)

hope this helps :D

Find the mean absolute deviation for:1, 1, 2, 4, and 7
a) 1
b) 2
c) 3
d) 0

Answers

Answer: C) 3
To get mean deviation it is nessasary to get the number between the two center numbers

HELP ME: Lee works at a job where her pay varies directly with the number of hours she works. Her pay for 6.5 hours is $49.40. Write a direct variation equation relating Lee’s pay x to the hours worked y. Then find her pay if she works 25 hours in a week. y = 7.6x; $190

Answers

Answer: 90$

Step-by-step explanation:

a) write 2 2/3 as an improper fraction in its simplest form.
B) work out 2 2/3 x5 give your anwser as an improper
fraction in its simplest form.

Answers

Step-by-step explanation:

a) write 2 2/3 as an improper fraction in its simplest form....

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

[tex] = \frac{2 \times 3 + 2}{ 2} \\ [/tex]

[tex] = \frac{8}{2} \\ [/tex]

[tex] = \frac{8 \div 2}{2 \div 2} \\ [/tex]

[tex] = \frac{4}{1} = 4 \\ [/tex]

B) Work out 2 2/3 x5 give your anwser as an improper...

[tex] = 2 \frac{2}{3} \times 5 \\ [/tex]

[tex] = \frac{2 \times 3 + 2}{3} \times 5 \\ [/tex]

[tex] = \frac{8}{3} \times 5 \\ [/tex]

[tex] = \frac{40}{3} \\ [/tex]

Question 6 of 10
The slope of the line below is -3. Which of the following is the point-slope
form of the line?
5
(2,-2)
O A. y-2 = 3(x+2)
O B. y + 2 = -3(x - 2)
O C. y2 = -3(x+2)
O D. y + 2 = 3(x-2)

Answers

The point-slope form of the line is y + 2 = -3(x - 2). The correct option is B. y + 2 = -3(x - 2)

Point-slope form of an equation of a line

From the question, we are to determine the point-slope form of the given line

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

[tex]y-y_{1}=m(x-x_{1})[/tex]

Where m is the slope and [tex](x_{1},\ y_{1})[/tex] is a point on the line

From the given information,

m = -3

And in the diagram,

One of the points on the line is (2, -2)

Therefore, we can write that

x₁ = 2 and y₁ = -2

Substituting into the point-slope form of an equation of a line,

We get

y - (-2) = -3(x - 2)

This becomes

y + 2 = -3(x - 2)

Hence, the pointslope form of the line is y + 2 = -3(x - 2). The correct option is B. y + 2 = -3(x - 2)

Learn more on Point slope form of an equation of a straight line here: https://brainly.com/question/8386231

The diagram for the question is attached below.

A shirt was originally priced at $80. The store is having a 25% off sale. How much will you pay for the shirt after the discount (not including tax)​

Answers

$60

hope it helps...!!!

What is the solution of the inequality shown
below?
x-1 < -10

Answers

Answer:

x<-9

Step-by-step explanation:

x−1<−10

Add 1 to both sides.

x<−10+1

Add −10 and 1 to get −9.

x<−9

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hoped this helped :)

Answer:

x < -9

Step-by-step explanation:

Bring like terms to one side

⇒ x - 1 < -10

⇒ x < -10 + 1

⇒ x < -9

The solution is x < -9 or x is less than negative 9

Find the length of the third side. If necessary, round to the nearest tenth
Pythagorean Theorem (Rounding)

Answers

Answer:

15.8 :D

Step-by-step explanation:

Pythagorean theorem: a^2 + b^2 = c^2

Now lets solve!!

9^2 + 13^2 = c^2

81 + 169 = c^2

250 = c^2

Now we need to find the square root!!

[tex]\sqrt{250}[/tex] = 15.8 :)

Have an amazing day!!

Please rate and mark brainliest!!!


This shows how to copy the triangle, cut the copy into pieces, and form a rectangle.

What is the area of the rectangle?
( ) square millimeters

What is the area of the triangle?
( )square millimeters


Answers

The area of the rectangle and triangle are 48 mm² and 24 mm² respectively.

What is an area?

The area is the amount of space occupied by a two dimensional shape or object.

Area of rectangle = length * width = 6 mm * 8 mm = 48 mm²

Area of triangle = (1/2) * base * height = 0.5 * 6 * 8 = 24 mm²

The area of the rectangle and triangle are 48 mm² and 24 mm² respectively.

Find out more on area at: https://brainly.com/question/25292087

Manuel starts with $30. He earns $8.00 per hour plus an additional
bonus of $12 each day. He spends $8.00 for lunch. If he has $94 at
the end of the day, how many hours did he work?

Answers

Answer:

He worked about 5.5 hours

Step-by-step explanation:

Im pretty sure

Answer:

7.5  hours

Step-by-step explanation:

h=hours

30+8h +12-8 =94

8h+34=94

8h =60

h= 7.5

Water is pouring into a conical vessel of diameter 5.2m and slant height 6.8m (as shown in the adjoining figure), at the rate of 1.8 m per minute. How long will it take to fill the vessel?​

Answers

Answer:

31.6m

Step-by-step explanation:

First, find area of the vessel [ (πr2h)/3 ]

Radius = 5.2/2= 2.6

Using Pythagorean theorem, find the height of the cone:

[tex]\sqrt{6.8^{2} -5.2^{2} }[/tex] = 4.38

Area of vessel = [tex]\frac{ (PI * 2.6 * 2 * 4.38)}{3}[/tex] =  56.88 [tex]cm^{3}[/tex]

Do cross multiplication using ratios:

1.8      =    1

56.88 =   [tex]x[/tex]

[tex]\frac{56.88}{1.8}[/tex]= 31.6

The number of students in sixth grade is 1.03 times the number of students in seventh grade. What percent is equivalent to 1.03?

Answers

move the decimal to the right twice to make this into a percent:

1.03 —-> 103%

What is the vertex of the graph of the function f(x) = x² + 8x - 2?
(-4,18)
(0,-2)
(-8, -2)
(-4,-18)

Answers

Answer:

(4, -18)

Step-by-step explanation:

First  Use this formula for the x -axis  -b/2a  

-8/2(1) is -4

Then plug in -4 to the equation

(-4)^2+8(-4)-2 = -18

Alexa can follow the sidewalk from the library to the school or she can travel across the grass
directly. Which route is longer?"
Sidewalk-78m
13m

Answers

The longer distance that Alexa can follow to the school is the sidewalk since 70m is longer than 13m.

How to calculate the distance?

From the information given, Alexa can follow the sidewalk from the library to the school or she can travel across the grass.

In this case, the distance of the sidewalk is 78m and the distance of the grass is 13m. Therefore, the longer distance is the sidewalk.

Learn more about distance on:

https://brainly.com/question/17273444

Solve the equation -4x^3=32

Answers

Answer:

-2

Step-by-step explanation:

-4x^3 = 32

x^3 = -8

take the cube root of both sides.

x = -2

[tex]-4x^3= 32\\\\\implies x^3 = -\dfrac{32}4\\\\\implies x^3 = -8\\\\\implies x^3 +8 = 0\\\\\implies x^3 +2^3 =0\\\\\implies (x+2)(x^2 -2x +2^2)=0\\\\\implies (x+2)(x^2 -2x +4) = 0\\\\\implies x +2 =0~~~\text{or} ~~~~x^2 -2x +4 = 0\\ \\\implies x = -2 ~~~~~~\text{or} ~~~~ x= \dfrac{2 \pm\sqrt{-12}}{2}=\dfrac{2 \pm i\sqrt{12}}2}=\dfrac{2\pm2i\sqrt3}{2}=1\pm i\sqrt 3\\\\\text{Hence,}~ x = -2,~~ x = 1+i\sqrt 3,~~~ x= 1-i\sqrt3[/tex]

Order -3,5, 16, and -10 from least to greatest.
Then order the same numbers from closest to
zero to farthest from zero. Describe how your
lists are similar.

Answers

Least to greatest: -10, -3, 5, 16
Closet to farthest from 0: -3, 5, -10, 16

Choose the correct problem for the fraction 12/13

A. 13 ÷ 12

B. 12 ÷ 13

C. 12 x 13

D. 12 ÷ 10

Answers

Answer:

B. 12 ÷ 13

Explanation:

13 ÷ 12 = 13/12

12 ÷ 13  =  12/13

12 x 13 = 156

12 ÷ 10 = 12/10 = 6/5

PLS HELP OFFERING BRAINLIEST+20 POINTS! I RLLLLLLLLLYYYYYYY NEED HELP!

Answers

Answer:

c and d

Step-by-step explanation:

hope it helps bud

Other Questions
Suppose that sequence of bases on one segment of DNA is ATCGGA. What is the sequence of the bases on the complementary segment? is it A: ATCGGAB: CGATTCC: AGGCTAD: TAGCCTAnd why is it one of those that you picked. What is the mode of the data set? 78, 82, 91, 78, 92, 77, 80, 74, 81A. 92B. 78C. 85.5D. 77Answer: B Find the words!! in french alright i just had to ask... anyone else in k12.. im trying to meet people? if so what 7th grade homeroom? Please answer this question According to the Civil Rights Act and the Pregnancy Discrimination Act, employers should not prevent people from working in hazardous jobs because of reproductive concerns. Group of answer choices True False Is this statement true or false in the ordered pair (4,3) the y coordinate is 4 what is the path of an egg from production to implantation of the fertilized egg If Madeline has one week to read 1293 pages of a book and if she wants to split her reading equally each day how many pages will she need to read each day in order to finish Where did Selena appear at 15 years old True or False: The following equation has 'no solutions'. What would happen if the salmon were over harvested PLSSS HELP State the equation of the exponential function that has thefollowing features. (2 marks) It has the x-axis as an asymptote. It passes through (0,i), (1,3), and (2,9). which is the best correction for the confusing pronoun in this passage?"I try to bring all my books to every class each day class but it can't carry all of them without becoming way too heavy."A. Change "it" to "they."B. Change "them" to "the books."C. Change "it" to "my backpack."D. Change "them" to "my classes." Which ready-to-use features do WYSIWYG editors offer?A. meta tagsB. databaseC. HTML tagsD. web hostE. image gallery Consider the linear equation y = 5x 4.1. Provide 3 ordered pairs that are solutions to this linearequation.2. Test the point (-5, -29) to see if it is a solution to thelinear equation.Be sure to show all work. Write down the reciprocal of:5by8 Which of the following best defines contraceptive? a. a device used to prevent pregnancy and disease b. a device used to prevent pregnancy c. a method or device used to prevent pregnancy d. a device used to prevent disease please select the best answer from the choices provided. a b c d Suppose that a classmate asked you why (2x + 112 is not (4x + 1). What is your response to this classmate?O A. An expression such as (2x + 1)2 is called the square of a monornial. The expression (2x + 1)2 is equal to (22 2xX1. 1), thus it is not equivalent to(4x2 +1)B. The classmate is correct. An expression such as (2x + 1)2 is called the square of a binomial. The expression (2x + 1)2 is equal to (2)?(x} = (132, thus it isequivalent to (4x + 1)OC. An expression such as (2x + 1)2 is called the square of a binomial. The expression (2x + 1)2 is equal to (2x+ 1x2x + 1), thus it is not equivalent to(4x + 1)OD. An expression such as (2x + 1)2 is called the product of the sum and difference of two terms. The expression (2x + 1)2 is equal to (2x+ 1(2x - 1), thus it isnot equivalent to (4x2 + 1)+ 7.744 liters of nitrogen are contained in a container. convert this amount to grams