1. Los estudiantes de primer grado de la IE Miguel Grau son 184, si la relación entre los que usan anteojos y los que no usan es de 3/5. ¿Cuántos estudiantes usan anteojos?

Answers

Answer 1

Answer:

69 estudiantes.

Step-by-step explanation:

Sabemos que el número total de estudiantes en primer grado es 184.

También sabemos que la relación entre los que usan anteojos y los que no es 3/5.

Esta relación es igual al cociente entre el número de estudiantes que usan anteojos y el número de estudiantes que no usan anteojos.

Si definimos las variables:

A = número de estudiantes que usa anteojos

B = número de estudiantes que no usa anteojos.

Tenemos la relación:

A/B = 3/5

podemos reescribir como:

A = (3/5)*B

Y también sabemos que el número total de estudiantes es 184, entonces tendríamos que:

A + B = 184.

Podemos aislar B en esta segunda ecuación para luego reemplazarlo en la primera.

Aislando B obtenemos:

B = 184 - A

Si reemplazamos esto en la otra ecuación obtenemos:

A = (3/5)*B

A = (3/5)*(184 - A)

Ahora podemos resolver esto para A.

A = (3/5)*184 - (3/5)*A

A + (3/5)*A = (3/5)*184

A*(1 + 3/5) = (3/5)*184

A*(5/5 + 3/5) = (3/5)*184

A*(8/5) = (3/5)*184

A = (5/8)*(3/5)*184

A = 69

Podemos concluir que 69 estudiantes usan anteojos.


Related Questions

Is 2.5 : 8 and 7.5 : 24 equivalent?

Answers

Answer:

Yes

Step-by-step explanation:

[tex]\frac{2.5}{8} = \frac{7.5}{24} = \frac{5}{16}[/tex]

Answer:

yes it is equivalent

because when we multiple 3

to both 2.5 and 8

then it will. 7.5:24

so, answer is yes

hope it helps

The members of the city cultural center have decided to put on a play once a night for a week. Their auditorium holds people. By selling​ tickets, the members would like to raise ​$ every night to cover all expenses. Let d represent the number of adult tickets sold at ​$. Let s represent the number of student tickets sold at ​$ each. If all seats are filled for a​ performance, how many of each type of ticket must have been sold for the members to raise exactly ​$​? At one performance there were times as many student tickets sold as adult tickets. If there were tickets sold at that​ performance, how much below the goal of ​$ did ticket sales​ fall?

Answers

Answer:

a) At $3,300 for 600 seats, the average price per seat is 3300/600 = $5.50. The mix of tickets that results in that average can be found using an X diagram as shown below. The numbers on the right are the differences along the diagonals. When they are multiplied by 2, they add to 600. This shows that the required sales for revenue of $3,300 are

 200 adult tickets

 400 student tickets

b) When 3 student tickets are sold for each adult ticket, the average seat price is

 (3*$4.50 +7.50)/4 = $5.25

Then the shortfall in revenue is ...

 $3,300 -480*$5.25 = $780

Which statement about the solution to the system and its justification is true? Please help!!

Answers

Answer:

c i think

Step-by-step explanation:

10 points AND BRAINLIEST EASY QUESTION MUST BE DONE IN 10 MIN OR LESS. NO TROLL ANSWERS​

Answers

Answer:

Initial Value=15

Rate of change=15/10=1.5

Equation: y=1.5x+15

Step-by-step explanation:

y=ax+b

y=1.5x+b

15=1.5(0)+b

b=15

I need help
Can you help me please!!!

Answers

Answer:

Step-by-step explanation:

The triangles are similar.

x/(x+4) = 7.2/12

x/(x+4) = 0.6

x = 0.6(x+4)

0.4x + 2.4

x = 6

The following expression represents the profit made by John as he mows
lawns: P = 20L - 100
Which description correctly interprets each part of the expression?

Answers

Answer:

P is price per lawn, 20 is the money made per lawn, L is the number of lawns mowed, 100 is his initial cost.

Step-by-step explanation:

Simplify 3y + 6y + 8

Answers

Answer:

Use photo math it will help you.

Answer:

9y+8

Step-by-step explanation:

I hope this helps! You add 3y+6y which is 9 and then you add 8, so the answer is 9y+8

what is 2X500 pls!!!!!

Answers

Answer:

1000

Step-by-step explanation:

2×500=1000

hope it helps

HELPPPPPP math please only correct answer i beg you

Answers

Answer:

the area is 15

Step-by-step explanation:

if you split this shape into a triangle and a square, the triangle would measure with a legnth og 4 and a with of 3, which = 12 and then you divide by 2 to = the triangles area(6) then you add tht to the area of the square 3*3=9. so the answer would be 15

5. Examine the expression below. Select the answer that correctly completes each statement below. * Enter your answer for all parts below.

Sample Answer: C, B, C

5x+2y+7

a The term 5x could be read as:

A the sum of 5 and x

B. the product of 5 and x

C. the quotient of 5 and x

b. In the expression, 7 is a:

A coefficient

B. constant

C. variable

c. In the expression, 2 is a:

A coefficient

B. constant

C. variable ​

Answers

Answer:

B, B, A.

Step-by-step explanation:

5x means 5 multiplied by x, so is it A, B or C? the product, because that means multiplied. a is B.

For b, we can see that 7 is a constant, because it isn't being multiplied by anything.

For c, 2y is 2 multiplied by y. Y would be the variable, and 2 would be the coefficient.

(10 POINTS) answer ASAP if you can

Answers

Answer:

D

Step-by-step explanation:

Because it's 340 meters per second

Help Me With this question!!!!!!!!!! please

Answers

Answer:

6

Step-by-step explanation:

Find the area of a room that is 8-feet-wide and 9-feet-long.

Answers

Step-by-step explanation:

Area = l × b

= 9ft × 8ft

= 72ft²

Answer:

72 feet

Step-by-step explanation:

8 (length) • 9 (width) = 72 sq ft

Determine the slope, if it exists, of the graph of the linear equation y=3.1x-3

Answers

Slope = 3.1

This is in y =mx + b

Where m = slope

A raffle is going to be held in which the winner will get $200. If 1000 tickets are to be sold, what is the fair
price for a ticket?

Answers

Answer:

$5

Step-by-step explanation:

1000/200=5

Answer:

20 cents.

Step-by-step explanation:

A fair price would be 200/1000 = 1/5 of a dollar which is 20 cents. But this does not allow for the people putting on the raffle to make any money for doing it. It would be better if the raffle went for a dollar. Most people would think that is fair and would not begrudge a dollar.

What does ''a over 3'' or a/3 mean?

Answers

Step-by-step explanation:

It means "a divided by 3". You need to divide a by 3. You can also write it as "1/3a".

Answer:

the answer is above me or below me

evaluate -3 x +2x-1 if x=-5

Answers

Solution: -3(-5) + 2(-5) -1= 4

Explanation:
Since the value of x is given you have to plug in or substitute it in for x in the equation. The work is shown above.
here is the how to solve this and the final answer

What is the length of side s of the square shown below?
45
8
90°
S
O A. 413
B. 2
O C. 1
D. 6
E. 4
O F. 8-12

Answers

Answer:

A. 4√2..........................

can you please help me ​

Answers

TR is tangent
SV and ST are chords
OT is perpendicular

Answer:

TR is tangent

SV and ST are the chords

OT is perpendicular to tangent line T

1 point
2) What should come in the place of question mark (?) in the following
letter series based on the English alphabetical order CF HK MP RU? *
O WZ
OEF
GH
OHJ​

Answers

Answer:

A) WZ

Step-by-step explanation:

B,C, and D, come before RU

“if there are 12 boys and 48 girls in a room, fill out all of the possible ratios of boys to girls that could be made.”

Answers

Answer:

1 boy 4 girls, 2 boys 8 girls, 3 boys 12 girls, 4 boys 16 girls

A BAKER USES 2/3 CUP OF RYE FLOUR IN EACH LOAF OF BREAD. HOW MANY CUPS OF RYE FLOUR WILL THE BAKER USE IN 9 LOAVES?

Answers

Answer:

6

Step-by-step explanation:

2/3 times 9 = 6

(Also: The Caps really attracted me)

The table shows the width and length of different pictures

Answers

Answer:

There is no table? try taking a screenshot

Step-by-step explanation:

In one town, there are 240 boys and 260 girls who play
1
sports. Of these, play soccer. How many children
play soccer in all?

Answers

Answer: 500 children play soccer

Step-by-step explanation:

Take the numbers you are given

240 boys

260 girls

now add them together

240 + 260 = 500

Answer:

500

Step-by-step explanation:

There is 240 boys and 260 girls

they all play the same sport

so add does numbers you get 500.

A box contains 17 ​transistors, 5 of which are defective. If are selected at​ random, find the probability of the statements below.

Answers

Answer:

27% chance that the transistor is defective

5:17

Step-by-step explanation:

The probability that the picked up transistor is defective is 5/17

What is a expression? What is a mathematical equation? What is Probability?

A mathematical expression is made up of terms (constants and variables) separated by mathematical operators. A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem. The formula to calculate the probability of occurrence of an event 'A' can be written as -  

P(A) = n(A)/n(S)

where -

n(A) = Number of outcomes favorable to event A.

n(S) = Total number of outcomes

Given is that a box contains 17 ​transistors, 5 of which are defective.

Probability that the picked up transistor is defective is -

P(D) = 5/17

Therefore, the probability that the picked up transistor is defective is 5/17

To solve more questions on Probability, visit the link below -

brainly.com/question/24028840

#SPJ2

The daily budget of $40, to be spent entirely on coffee and comic books. Each comic book is priced at $8 and each
cup of coffee is priced at $4. To maximize utility, how many cups of coffee and how many comic books should I buy How many total utils will i enjoy?

Answers

Answer:

3 comic books and 4 cups of coffee

Step-by-step explanation:

8 × 3 = 24

4 × 4 = 16

16 + 24 = 40

Plz show work thanks

Answers

Answer:

1/sec x- tan x

Step-by-step explanation:

sec x+ tan x

= sec x+ tan x) (sec x - tan x)/(sec x , tan x)

=sec^2x-tan^2x)(sec x- tan x)

(sec^2x-tan^2x=1)

=1/sec x- tan x

Which equation is represented by the line

Answers

The correct choice is the third one. Y=2/3x

what is the value of x?

Answers

Answer:

x=37

Step-by-step explanation:

As you can see in the image, both angles are congruent to each other. 74 degrees and 2x degrees. You have to divide 74 by 2 to find what x equals.

74/2=37

x=37

7.1.14-T Question Help 이 Use the sample data and confidence level given below to complete parts (a) through (d). A drug is used to help prevent blood clots in certain patients. In clinical trials, among 4528 patients treated with the drug, 102 developed the adverse reaction of nausea. Construct a 95% confidence interval for the proportion of adverse reactions. a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.)​

Answers

Answer:

woahhhhhh too much

Step-by-step explanation:

Answer:

7.1.14-T Question Help 이 Use the sample data and confidence level given below to complete parts (a) through (d). A drug is used to help prevent blood clots in certain patients. In clinical trials, among 4528 patients treated with the drug, 102 developed the adverse reaction of nausea. Construct a 95% confidence interval for the proportion of adverse reactions. a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.)

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