Ask question

Ask question

All categories

emmainna [20.7K]

3 years ago

13

24% of students in a class are girls. If there are less than 30 students in this class, how many students are there? How many gi

rls are there?

1 answer:

castortr0y [4]3 years ago

5 0

Answer:

Step-by-step explanation:

The GCF (greatest common factor) of 24 and 30 is 6.

30-30/6=25

25 students in the class

24% of 25 is 6

6 girls in the class

You might be interested in

Write -15.175 as a mixed number

Ksju [112]

-15 7/40

Convert a mixed number by placing the numbers to the right of the decimal over
1000.

7 0

3 years ago

Read 2 more answers

What is the probability that a randomly selected person surveyed has a job, given that the person is less than 18 years old? Exp

weeeeeb [17]

When the person is less than 18 years old, out of 265 persons, 20 has job and 245 do not have job.

The probability is defined as $\frac{no\;of \; favourable \;outcomes}{total\;number\;of\;outcomes}$ .

Consider the first column only.

The probability that a randomly selected person surveyed has job is

$\frac{20}{20+245} =0.0755$

5 0

3 years ago

Read 2 more answers

In △ABC,∠B is a right angle. The coordinates for each point are A(10, 7), B(5, 9), and C(3, 4). Rounded to the nearest tenth,

shepuryov [24]

Answer:

$A=14.5\ units^2$

Step-by-step explanation:

we know that

The area of the right triangle ABC is equal to

$A=\frac{1}{2}(AB)(BC)$

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

A(10, 7), B(5, 9), and C(3, 4)

step 1

Find the distance AB

A(10, 7), B(5, 9)

substitute in the formula

$d=\sqrt{(9-7)^{2}+(5-10)^{2}}$

$d=\sqrt{(2)^{2}+(-5)^{2}}$

$d_A_B=\sqrt{29}\ unjts$

step 2

Find the distance BC

B(5, 9),C(3, 4)

substitute in the formula

$d=\sqrt{(4-9)^{2}+(3-5)^{2}}$

$d=\sqrt{(-5)^{2}+(-2)^{2}}$

$d_B_C=\sqrt{29}\ unjts$

step 3

Find the area

substitute the values

$A=\frac{1}{2}(\sqrt{29})(\sqrt{29})$

$A=14.5\ units^2$

5 0

3 years ago

¿Se puede afirmar que América es un conti-<br> nente poco poblado? ¿Por qué?

notka56 [123]

Answer:

El continente que se considera poco poblado debido a que su población ocupa menos de la mitad de su territorio es AMÉRICA.

Aunque no lo pareciera tenemos que el continente americano es considerado como poco poblado, pero esto es por la distribución de las sociedades que por falta de población.

La distribución de los pueblos americanos es bastante ortodoxa y esto ha hecho que las poblaciones se concentren en sitios y que ocupen menos territorio en el continente. Ademas, hay que tomar en cuenta que existe muchos territorios naturales que no se pueden poblar por ejemplo la amazonia.

Step-by-step explanation:

7 0

2 years ago

50.) Find the value of b so that 330_b = 226_b+5<br> URGENT

jekas [21]

Step-by-step explanation:

make equation and find the value

7 0

3 years ago