1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nana76 [90]
3 years ago
11

En un 9no grado, la asignatura de matemáticas la han aprobado el 62.5% de las alumnas y el 80% de los alumnos, mientras que la a

signatura de historia la han aprobado 87.5% de las alumnas y el 60% de los alumnos. Calcular el numero de alumnas y alumnos que hay en el aula, si el total de aprobados es 26 en ambas asignaturas

Mathematics
1 answer:
Paha777 [63]3 years ago
3 0

Answer:

In the classroom there are 16 girls and 20 boys

Step-by-step explanation:

The question in English is

In the ninth grade, 62.5% of girls and 80% of boys passed the mathematics course, while 87.5% of girls and 60% of boys passed the history course. Calculate the number of students in the classroom, if the total number of passes is 26 in both subjects

Let

x ----> total girls in the classroom

y ---> total boys in the classroom

we know that

mathematics course

0.625x+0.80y=26 -----> equation A

history course

0.875x+0.60y=26 ----> equation B

Solve the system of equations by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

The solution is the point (16,20)

see the attached figure

therefore

In the classroom there are 16 girls and 20 boys

You might be interested in
I will venmo if someone can please help me
shutvik [7]

Answer: 14.967

Step-by-step explanation:

Use Pythagorean Theorem to find the missing length.  

a² + b² = c²        

x² + 10² = 18²      

x² + 100 = 324         [Subtract 100 from both side]  

          x²= 224        

      √x² = √224     [solve the square root from both sides]

        x   ≈  14.967

4 0
3 years ago
What is the value of x?
garik1379 [7]

Answer:

<h2>x = 30°</h2>

Step-by-step explanation:

The angle 30° and 2x are complementary angles.

Two angles are called complementary angles, if their sum is one right angle (90°).

Therefore we have the equation:

30 + 2x = 90          <em>subtract 30 from both sides</em>

2x = 60      <em>divide both sides by 2</em>

x = 30

5 0
3 years ago
X + (2x + 40) + (3x – 50) = 15,002
Charra [1.4K]

Answer:

2497.22...

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Can you help me with this...thank you​
mr_godi [17]
You solve by with by altitude! Hope it helps
3 0
3 years ago
Read 2 more answers
Use the surface integral in​ stokes' theorem to calculate the flux of the curl of the field
borishaifa [10]
<span>In order to use the surface integral in​ Stokes' theorem to calculate the flux of the curl of the field, we need the field</span>
4 0
3 years ago
Other questions:
  • 445.3 round to the nearest ten thousand
    13·1 answer
  • Name each ray<br><br>Calculation Tip: In ray "AB", A is the endpoint of the ray.
    15·1 answer
  • Simplify the expression. Use standard polynomial format.<br> x(2x + 3) + (x - 3)(x - 4)
    11·1 answer
  • Eva played her favorite video games for 14 hours last week. Today, evas parents restricted her to 4 hours each week for the next
    9·1 answer
  • The rabbit population in a certain area is 500% of last years population. There are 1,300 rabbits this year. How many were there
    9·1 answer
  • Adf;alkjfd;lkaj;ldkfjadfj[klh
    11·1 answer
  • PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
    12·1 answer
  • What’s the slope of the line ? plz help
    12·1 answer
  • Karina ate 1/2 of the muffins. Ulysses ate 1/4 of the muffins. Zawanna ate 1/5 of the muffins. Juan ate the rest of the muffins.
    9·1 answer
  • Suppose 5 quarts of a solution that is15% antifreeze is mixed with quarts 3 of a solution that is antifreeze 65% . Answer the qu
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!