The table below summarises the number of books in some students' schoolbags.

Number of books Frequency
1 3
2 5
3 12
4 25
5 4
6 1
How many students are included in this data set?

Answers

Answer 1

Answer:

Total number of students = 50 students.

Step-by-step explanation:

Total number of books = number of books * frequency

1 * 3 = 3

2 * 5 = 10

3 * 12 = 36

4 * 25 = 100

5 * 4 = 20

6 * 1 = 6

Total number of books = 3 + 10 + 36 + 100 + 20 + 6

Total number of books = 175 books.

Now, to find the total number of students;

Total number of students = summation of frequency

Total number of students = 3 + 5 + 12 + 25 + 4 + 1

Total number of students = 50 students.


Related Questions

What is the next fraction in this sequence? Simplify your answer 1/5, 1/3, 7/15, 3/5

Answers

2/8. Hdhxhxdickintheaashole

Tyler plans to start a lemonade stand and is trying to
perfect his recipe for lemonade. He wants to make sure
the recipe doesn't use too much lemonade mix (lemon
juice and sugar) but still tastes good.
Recipe 1 is given by the equation y = 4x
where x represents the amount of lemonade mix in
cups and yrepresents the amount of water in cups.
Recipe 2 is given in the table.
1) Complete the table and graph
Recipe 1 (Blue line) Recipe 2 (Red line)

Answers

Answer:

Step-by-step explanation:

a) For 16 cup lemonade, 64 cups water need

and, for 16 cup lemonade, 80 cups water needed.

b) Rate of change is  4 or 5 cups/ lemonade

what is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given:

y = 4x

where x represents the amount of lemonade mix in cups and

y represents the amount of water in cups.

a) lemonade cups= 16

water needed

y= 4x

y= 4 x 16

y= 64

and, in second case

y= 5x

y= 80

b) rate of change,

First, y/x= 4

and secondly y/x= 5

Learn more about equation here:

https://brainly.com/question/10413253

#SPJ2

Bert’s age plus twice Ernie’s age is 30. Bert’s age plus 8 times Ernie’s age is 108. How old are Bert and Ernie?

Answers

Answer:

They are 12 and 9

Step-by-step explanation:


Simplify this PLEASE

Answers

Answer:

[tex]\frac{12a-14b}{21}[/tex]

Step-by-step explanation:

Express the 2 fractions with a common denominator of 21

multiply numerator/denominator of first fraction by 3

multiply numerator/denominator of second fraction by 7

[tex]\frac{4a(3)}{7(3)}[/tex] - [tex]\frac{2b(7)}{3(7)}[/tex]

= [tex]\frac{12a}{21}[/tex] - [tex]\frac{14b}{21}[/tex]

= [tex]\frac{12a-14b}{21}[/tex]

In Triangle DEF, e=2.7 inches, angle F=49 degrees and angle D=58 degrees. Find the length of f, to the nearest 10th of an idea.

Answers

Answer: 2.1

Step-by-step explanation:

Anthony had $35 to spend at a fair. He has $21.50 remaining after taking 6 rides with each ride costing the same. How much did Anthony pay for each ride?

Answers

Answer:

$3.58

Step-by-step explanation:

Well you do 21.50 ÷ 6 and you have your answer. I hope this helps!

What is the elapsed time between the two times shown on the clocks?

3 hours and 30 minutes
4 hours and 15 minutes
3 hours and 45 minutes
3 hours

Answers

3 hours and 45 minutes

Answer:

3 hours and 45 minutes is the answer.

tanya has 12 less votes than cynthia for class president. Write and solve a subtraction equation to find the number of votes for cynthia

Answers

Answer:

c - 12 = t

Step-by-step explanation:

c stands for cynthia and t stands for tanya

since tanya has 12 less votes than cynthia, you would subtract 12 from cynthia

Answer:

c-12=t

Step-by-step explanation:

Cynthia's number of votes for class president is unknown.

But, we know that Tanya has 12 less votes than her, so if you subtract Cynthia amount of votes by 12 you will get Tanya's.

Hope this helps! :)

the diagram shows a triangle 3x-1,3x and 4x-1. The perimeter of the triangle is 70 cm. The area of the triangle is a^2 cm. What is the value of a?

Answers

Answer:

thanks for your points

You buy a Bicycle for $125. A 6% sales tax is added. Write and solve an equation(s) to find find the total price.

Answers

It’s $132. 125 x 1.06 = 132, you multiply the first price by the number itself (1) and then the tax price (.06)

HELPP ASAPPPP on a windy winters day the actual air temps turn is -5C and the wind speed is 15 kilometers per hour. What would the wind chill factor make the temperature feel like to a person outdoors?
A. 1.7C
B. -5C
C. -10.6 C
D. -16.7 C

Answers

Answer:

C

Step-by-step explanation:

I think the answer is c

PLEASE HELP
Reflect J(3,5) across the X axis

Answers

Answer:

The answer is (3,-5)

Step-by-step explanation:

The rule of the x-axis is (x,-y)

J'(3,-5)

In a​ company, ​60% of the workers are men If people work for the company who​ aren't men​, how many workers are there in​ all? Use pencil and paper. Show two different ways that you can solve this problem.

Answers

Complete question :

In a​ company, ​60% of the workers are men If 125 people work for the company who​ aren't men​, how many workers are there in​ all? Use pencil and paper. Show two different ways that you can solve this problem.

Answer:

313

Step-by-step explanation:

Given that :

Percentage of workers who are men = 60%

Number of workers who aren't men = 125

Hence, percentage of workers who aren't men = (100% - 60%) = 40%

Thus;

40% of workers = 125

If ;

0.4 = 125

100% of the workers x

0.4 = 125

1 = x

Cross multiply

0.4x = 125

0.4x / 0.4 = 125 / 0.4

x = 312.5

Hence, total number of workers = 313

What is a equation of the line that passes through the point (−5,7) and is parallel to the line x+5y=10

Answers

Answer:

[tex]\displaystyle y = -\frac{1}{5} x +6[/tex]

Step-by-step explanation:

Equation of a LIne

The point-slope form of the equation of a line is:

y - k = m ( x - h )

Where m is the slope and (h,k) is a point through which the line passes.

We are required to find the equation of a line that passes through the point (-5,7) and is parallel to the line x+5y=10.

This information provides us the values of h=-5 and k=7. We now need to determine the value of the slope.

Two parallel lines have equal values for the slopes. The equation of the line

x + 5y = 10

Can be rearranged in such a way we can find its slope. Let's solve it for y:

5y = -x + 10

[tex]y = -\frac{1}{5}+2[/tex]

The slope of this line is -1/5 and that is the same value of the slope of our line, thus its equation is:

[tex]\displaystyle y - 7 = -\frac{1}{5} ( x + 5 )[/tex]

Adding 7:

[tex]\displaystyle y = -\frac{1}{5} ( x + 5 )+7[/tex]

Operating:

[tex]\displaystyle y = -\frac{1}{5} x + -\frac{1}{5}*5 +7[/tex]

[tex]\displaystyle y = -\frac{1}{5} x -1+7[/tex]

[tex]\boxed{\displaystyle y = -\frac{1}{5} x +6}[/tex]

Answer:

7=-1/5x+6 is the answer

help lol i suck at this

Answers

Answer:

Angle SFE = 115 °

Step-by-step explanation:

GFS + SFE = GFE

26° + 114x+1 = 142x -1

28° + 114 x. = 142x

28°= 142x-114x

28° = 28x. Thus,x=1

=> Angle SFE = 114(1)+1= 115°

Hope this helps you.

Calculate the rate of change

Answers

Answer:

The rate of change is 6.

Step-by-step explanation:

Using the point slope form we know that y-y1/x-x1

so 12-6/2-1

this gives 6/1 which is 6.

A concert is attended by2500 people.If 47% are adult females and 32% are adults males,how many children attended?​

Answers

Answer:

use division

Step-by-step explanation:

Answer:

525

Step-by-step explanation:

first we need to work out the percentage of the children who attended  to to do this we need to add 47% with 32% which is 79%. Then you need to take away 79% from 100% which is 21%. After that you now know that 21% is the children who attended but you wanted to know how many children so to work this out you would find 21% of 2500 which would give you 525.

i hope this helps

Tameka pilots a hot air balloon. She lowers the balloon five times, going down an equal distance each time. In all, Tameka lowers the balloon 75 m.

Answers

Answer:

Step-by-step explanation:

Just divide 75 by 5. Which is 15vso the integer is 15.... gl with the rest

can you guys help plsss

Answers

The answer is 21 in^2.
The equation to find the area of a triangle is 1/2(b)(h)
So it would be 1/2(7)(6) making it equal 21.
Hope this helps :)

What’s the correct answer?

Answers

Answer:

1/7

Step-by-step explanation:

1 - 0                   1

------        =      -------

0 - ( - 7)             7

what are 9's multiple

Answers

multiplication 9,18,27,36,45,54,63,72,81,90.

exponents 9,81,729,6561,59049
9,17,27,36,45,54,63,72,81,90

HELP ASAP YOU GET BRAIBLIEST FOR CORRECT ANSWER

Answers

Answer:

8x+9

if you are happy with my answer, please give brainliest :)

Step-by-step explanation:

Combine like terms:

2x+9+6x=8x+9

Step-by-step explanation:

Combine like terms:

2x+9+6x=8x+9

Answer:

8x+9

Plzzzz give me Brainliest!  

3x+4y+x Simplify the expressions.

Answers

Answer:

that would be 4x+4y

Step-by-step explanation:

hope this helps

Figure 1
Figure 2
Figure 3
Look at the tile pattern figures above. What is the equation of the line that represents the growth of tiles for each new figure?
a
y=1x + 2
y = 2x +1
ос
y = 2x + 3

Answers

Answer:

you already answerd

Step-by-step explanation:

Malcolm is trying a very low-carbohydrate diet. He would like to keep the amount of carbs consumed in grams between the levels shown in the following compound inequality:

50 < 2x + 10 and 2x + 10 < 110

Answers

3 because the opposition was the 19

Nancy bought an energy drink for $4 along with some candy bars that cost $3.50 each. She spent $21.50. How many candy bars did Nancy buy?

Answers

21.5-4/3.50 =5 candy bars Nancy bought

Ok this is getting stressful and hard already, we’re not even learning it yet but whatever, please help me will mark Brainliest if you get it right. I believe in us!

Answers

Answer:

yes? im pretty sure yeah

Step-by-step explanation:

Todos los días por la mañana Alfonso maneja a una velocidad de 80 km/hr para llegar a su trabajo a tiempo realizando un tiempo de 42min de regreso por la tarde disminuye su velocidad a 65km/hr ¿cuanto tiempo tarda para llegar a casa

Answers

Estoy usando el traductor de en línea. No hablo mucho español.

Distancia = velocidad x tiempo
= 80 km/hr x 42 minutos
= 56 km


Tiempo = distancia / velocidad
= 56 km / 65 km/hr
= 51,6923 minutos
= 51,6923 min
= 0 horas, 51 minutos, 42 segundos

Espero que esto te ayude.

Usando proporciones, tiene-se que tardará 52 minutos para llegar a casa.

-----------------------------

Esta pregunta se resuelve por proporciones, usando una regla de tres. Considerando que la velocidad y el tiempo son inversamente proporcionales, a medida que uno aumenta y el otro disminuye, se aplica una regla inversa de tres, en la que la multiplicación está en la línea en lugar de cruzada.

-----------------------------

80km/hr tiene un tiempo de 42 min. Qual el tiempo a una velocidad de 65 km/hr?

80 km/hr - 42 min

65 km/hr - x min

Multiplicando las líneas:

[tex]65x = 80 \times 42[/tex]

[tex]x = \frac{80 \times 42}{65}[/tex]

[tex]x = 52[/tex]

Tardará 52 minutos para llegar a casa.

Un problema similar es dado en https://brainly.com/question/17390740

what is the value of​

Answers

Step-by-step explanation:

yes the first option is the correct one.

2x - y = 3
x = -2y - 1

Answers

Answer:

          x  = 1,  y = - 1

Step-by-step explanation:

2x - y = 3

x = -2y - 1

2x - y = 3

2(-2y - 1) - y = 3

-4y - 2 - y = 3         {add 2 to both sides}

- 5y = 5             {divide both sides by (-5)}

 y = -1

x = -2y - 1 = -2(-1) - 1 = 2 - 1 = 1

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