which answer choice ?

Answer:

Hay 140 alumnos en dicha aula.

Step-by-step explanation:

Primero, debes encontrar la cantidad de alumnos que aprobaron que corresponde a 4/5 usando una regla de tres teniendo en cuenta que sabes que 1/5 corresponde a 21 que son los estudiantes que no aprobaron:

1/5  → 21

4/5 →  x

x=(4/5*21)/1/5

x=(84/5)/(1/5)

x=84*5/5*1

x=420/5

x=84

Ahora, puedes sumar el número de estudiantes que aprobaron con el número de estudiantes que no aprobaron para encontrar el total que estudiantes que asistieron al examen:

84+21=105

Después, dado que sabes que 105 estudiantes corresponde a 3/4 de los alumnos en un aula, puedes usar una regla de tres para encontrar el número de estudiantes en el aula:

3/4 → 105

1     →   x

x=(1*105)/(3/4)

x=(105/1)/(3/4)

x=105*4/1*3

x=420/3

x=140

De acuerdo a esto, la respuesta es que hay 140 alumnos en dicha aula.

Answer:

Top left: > Top right: > Bottom left: < Bottom right: >

Step-by-step explanation:

Answer:

-0.25 > -0.3

9.999 > 9.975

3(5/8) < 30/8

10(2/3) < 61/6

Answer:

125, 20

Step-by-step explanation:

Answer:

1.95

Step-by-step explanation:

X= 10

2×10squared(10-5)/ 10×10

2×100-5/10×10

200-5/10×10

195/10×10

195/100

1.95

Answer:

4cm because area is length times width

Step-by-step explanation:

Answer:

4 cm2

Step-by-step explanation:

[tex]area = side {}^{2} = (2cm) {}^{2} = 4cm {}^{2} [/tex]

[tex]3x^2-5x=2[/tex]

Answer:

( o ,-1 ) y- intercept

( 2 , - 1 ) extra point

Step-by-step explanation:

ax2+bx+cy=ax2bx2

Answer:

33 degress

hope i helped :)

Step-by-step explanation:

Answer:

2y + 3 = 6

Step-by-step explanation:

2y + 3 = 6 Subtract 3 from both sides

2y = 3 Divide 2 from both sides

y = 3/2

Answer:

B

Step-by-step explanation:

V=π4²×9=144π

for B

V=π3²×16=144π

Answer:

B. adjacent and D. supplementary

Answer: -2x²+2x+3

Step-by-step explanation:

Factoring -2x2+2x+3

The first term is, -2x2 its coefficient is -2 .

The middle term is, +2x its coefficient is 2 .

The last term, "the constant", is +3

Step-1 : Multiply the coefficient of the first term by the constant -2 • 3 = -6

Step-2 : Find two factors of -6 whose sum equals the coefficient of the middle term, which is 2 .

-6 + 1 = -5

-3 + 2 = -1

-2 + 3 = 1

-1 + 6 = 5

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Answer:

6 months

Step-by-step explanation:

615=95n+45

-45 from 615 =570

570=95n

divide both side by 95

Answer:

6 Months

Step-by-step explanation:

95 x 6 is 570. If you add the set up fee, it comes down to 615 dollars.

Hope this helps! Have a great rest of your day/night. :)

Answer:

The answer should be 75 if i did the math right

Answer:

Step-by-step explanation:

You have to add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

So in this case it would be:

46+56+64+64+72+76+77+82+94+96+99.

And the answer for the first step is: 826.

Next Step!

826 will have to be divided by 11.

Because there are 11 numbers that had to be added.

So 826÷11=75.

Answer:

AC = 8.2 m

AD = 8.57 m

Step-by-step explanation:

The answers were rounded to the nearest hundredth, hope this helps!

Answer:

Step-by-step explanation:

Answer:

11:00

Step-by-step explanation:

This is easier than I thought...

So 8:30+2 is 10:30

...and now we have 1/2 left.

1/2 in this case of time would be 30

So, 10+30+30 would be 10:60

Now all we have to do is simplify it

60 minutes= 1 hour

So...

10:60-60=10

10+1=11

11 AM is the correct answer!

Hope this helps! :D

Answer:

can I get a hiaaa

How was the government able to make children go to residential school?

Answer:

Step-by-step explanation:

12,359 lolll

Answer:

123470

easy question dude plz mark me as brainliest

Answer:

104 ounces

Step-by-step explanation:

40+64= 104

.......

Answer:

x = 45/2 = 22.5 cm

Step-by-step explanation:

2x + 45 = 90

2x = 90- 45= 45

2x = 45

x = 45/2 = 22.5 cm

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

if you find it useful.

Answer:

111.678

Step-by-step explanation:

Answer:

can u help me on my question please pleasee

Answer:

226.1946711 cubic ft

Step-by-step explanation:

volume of cylinder = πr²h

diameter (d)=6ft

r= d/2 = 6/2=3ft

h= 8ft

putting all values in the formula and calculating the volume

Answer:

3x + 2 = 3

Step-by-step explanation:

3x + 2 = 3 Subtract 2 from both sides

3x = 1 Divide both sides by 3

x = 1/3

Answer:

First Space: 49

Second Space: 33

Third Space:-99

Fourth Space: -99

Fifth Space: 10

Sixth Space: -89

Step-by-step explanation:

First Space: for the first space you would do -7 times -7 because it is squared so you would get 49 because a negative and a negative and a negative make a positive.

Second Space: For the second space you have to do 49-16 because you already found the first space and the answer would be 33.

Third Space: For the third space you would do the answer you got from the second space which is 33 and multiply by -3 because -3 is outside the brackets. The answer would be -99.

Fourth Space: You would just put the same thing as the third space and put -99.

Fifth space: To find the fifth space you have to do 4 ÷ 2/5. To find this part you have to do 4 times the reciprocal (when you flip the fraction) and you would get 4 times 5/2. Then you can cross the denominator (bottom of the fraction) and make the 4 a 2 because 4 ÷ 2=2. Next you do 2 times 5 and get 10 as a answer.

Sixth Space: For the final answer you would use the fourth and fifth space. You would do -99+10 which is -89.

Hopefully this helps :)