Ask question

Ask question

All categories

mrs_skeptik [129]

3 years ago

12

There are 1600 students in a school. 47.5% of them are male. How many are female?

2 answers:

ch4aika [34]3 years ago

7 0

Answer: 47.5% of 1600= 760 males which means 840 are females

Step-by-step explanation:

astraxan [27]3 years ago

4 0

Answer:

53.5 percent.

Step-by-step explanation:

100-47.5=53.5 percent.

Do not copy mines or I will report you.

You might be interested in

25 - (-4) plzzzzz<br><br><br><br> ijkfytwhdfvytwefvfevetvy

djyliett [7]

Step-by-step explanation:

Given

25 - (- 4)

= 25 + 4

= 29

Hope it will help :)

3 0

3 years ago

Read 2 more answers

11) Specific resistance is also called ? and is abbreviated with the capital letter K or the Greek letter ρ (rho).

Nuetrik [128]

Answer:

Resistivity

Step-by-step explanation:

Resistivity : It is a fundamental property of a material that measures how strongly a particular material opposes the flow of electric current. It is also known as specific resistance.

A low resistivity indicates a material that easily allows the flow of electric current.

Resistivity is commonly represented by the Greek letter ρ (rho) or abbreviated with a a capital letter K. The SI unit of electrical resistivity is the ohm-metre (Ω⋅m).

Hence, the correct answer for the blank is Resistivity.

8 0

3 years ago

wel

Answer:

about $0.14

Step-by-step explanation:

$4.36 (1/32) =

0.13625 =

about $0.14

4 0

3 years ago

Read 2 more answers

Let A be a set of numbers.

LUCKY_DIMON [66]

Answer:

a. closed under addition and multiplication

b. not closed under addition but closed under multiplication.

c. not closed under addition and multiplication

d. closed under addition and multiplication

e. not closed under addition but closed under multiplication

Step-by-step explanation:

a.

Let A be a set of all integers divisible by 5.

Let $x,y$ ∈A such that $x=5m\,,\,y=5n$

Find $x+y,xy$

$x+y=5m+5n=5(m+n)$

So, $x+y$ is divisible by 5.

$xy=(5m)(5n)=25mn=5(5mn)$

So,

$xy$ is divisible by 5.

Therefore, A is closed under addition and multiplication.

b.

Let A = { 2n +1 | n ∈ Z}

Let $x,y$ ∈A such that $x=2m+1\,,\,y=2n+1$ where m, n ∈ Z.

Find $x+y,xy$

$x+y=2m+1+2n+1=2m+2n+2=2(m+n+1)$

So,

$x+y$ ∉ A

$xy=(2m+1)(2n+1)=4mn+2m+2n+1=2(2mn+m+n)+1$

So,

$xy$ ∈ A

Therefore, A is not closed under addition but A is closed under multiplication.

c.

$Let A=\{2,5,8,11,14,...\}$

Let $x=2,y=5$ but $x+y=2+5=7$ ∉A

Also,

$xy=2(5)=10$ ∉A

Therefore, A is not closed under addition and multiplication.

d.

Let A = { 17n: n∈Z}

Let $x,y$ ∈ A such that $x=17n,y=17m$

Find x + y and xy

$x+y=17n+17m=17(n+m)$

$xy=(17m)(17n)=289mn=17(17mn)$

So,

$x+y,xy$ ∈ A

Therefore, A is closed under addition and multiplication.

e.

Let A be the set of nonzero real numbers.

Let $x,y$ ∈ A such that $x=-1,y=1$

Find x + y

$x+y=-1+1=0$

So,

$x+y$ ∈ A

Also, if x and y are two nonzero real numbers then xy is also a non-zero real number.

Therefore, A is not closed under addition but A is closed under multiplication.

4 0

3 years ago

Which of the sets of ordered pairs represents a function

rjkz [21]

4 neither of them are functions because the x repeats itself

4 0

3 years ago

Read 2 more answers