All categories

3 years ago

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Mathematics

2 answers:

max2010maxim [7]3 years ago

3 0

Answer: 50% chance that a randomly chosen student will be a boy

denis-greek [22]3 years ago

3 0

Answer:

Step-by-step explanation

total number of student= 526

total number of girl= 263

total number of boy= 526 - 263 = 263

Probability that chosen student will be boy = number of favorable items/ total number of possible outcome= 263/526 = 1/2

You might be interested in

A mixture of compounds X and Y in a 0.100-cm cell had an absorbance of 0.215 at 272 nm and 0.191 at 327 nm. Find [X] and [Y] in

Oksi-84 [34.3K]

Answer: The concentration of X is $7.13582\times 10^{-6}$ and the concentration of Y is $2.53159\times 10^{-5}$ .

Step-by-step explanation:

Since we have given that

At 272 nm, absorbance = 0.215

At 327 nm, absorbance = 0.191

As we have given that

Compound X Compound Y

272 16400 3870

327 3990 6420

So, our equations becomes

$16400C_1+3870c_2=0.215\\\\3990C_1+6420C_2=0.191$

By solving these two equations, we get that

$C_1=7.13582\times 10^{-6}\\\\C_2=2.53159\times 10^{-5}$

Hence, the concentration of X is $7.13582\times 10^{-6}$ and the concentration of Y is $2.53159\times 10^{-5}$ .

5 0

3 years ago

Which of the following can be used to calculate the volume of water inside the fish bowl?

Lunna [17]

The volume of a sphere can be calculated as

$V=\frac{4}{3}\pi r^3$

Where r is the radius of the sphere

We want to calculate half of the volume, then we must divide that volume by 2

$V^{\prime}=\frac{1}{2}\frac{4}{3}\pi r^3$

Now we must find the radius of our sphere, the segment AB is the diameter of the sphere, and the radius is half od the diameter, then

$r=\frac{AB}{2}=\frac{12}{2}=6$

Let's put it into our equation

$\begin{gathered} V^{\prime}=\frac{1}{2}\left(\frac{4}{3}\right)(\pi)(r)^3 \\ \\ V^{\prime}=\frac{1}{2}\left(\frac{4}{3}\right)(\pi)(6)^3 \end{gathered}$

The problem says to use

$\pi\approx\frac{22}{7}$

Then

$V^{\prime}=\frac{1}{2}\left(\frac{4}{3}\right)\left(\frac{22}{7}\right)(6)^3$

Final answer:

The formula that can be used to calculate the volume of water inside the fish bowl is

$V=\frac{1}{2}\left(\frac{4}{3}\right)\left(\frac{22}{7}\right)(6)^3$

8 0

1 year ago

Which situation can be represented by 3s = 5s - 6 ?

grin007 [14]

Answer:

First one

Step-by-step explanation:

3s=5s-6

8 0

3 years ago

Can someone help me? please

Black_prince [1.1K]

Answer:

I can but not willing right now so sorry

4 0

3 years ago

Hair grows on your head faster than any other place on your body. Sue was interested in figuring out how fast her hair grows so

Fed [463]

mY HAIR dOesNt GRoW FaStEr oN My HHeAD

5 0

3 years ago