All categories

2 years ago

4. Emilio asks his classmates what month they were born. He finds that 15

Mathematics

1 answer:

svetlana [45]2 years ago

5 0

Answer:153

Step-by-step explanation:

From the question, we are informed that Emilio asks his classmates what month they were born and that he finds that 15 out of 125 classmates were born in July. This gives us a fraction of 15/125 = 3/25.

If there are 1,280 students in Emilio's school, the number of students that he can expect to have birthdays in July would be:

= 3/25 × 1280

= 153.6

There will be 153 students expected

You might be interested in

Claire Judice

Julli [10]

Answer:

The values of 'x' are -1.2, 0, 0, $-4i$ or $4i$ .

Step-by-step explanation:

Given:

The equation to solve is given as:

$5x^5+6x^4+80x^3+96x^2=0$

Factoring $x^2$ from all the terms, we get:

$x^2(5x^3+6x^2+80x+96)=0$

Now, rearranging the terms, we get:

$x^2(5x^3+80x+6x^2+96)=0$

Now, factoring $5x$ from the first two terms and 6 from the last two terms, we get:

$x^2(5x(x^2+16)+6(x^2+16))=0\\x^2(x^2+16)(5x+6)=0$

Now, equating each factor to 0 and solving for 'x', we get:

$x^2=0\\x=0\ and\ 0\\\\5x+6=0\\x=\frac{-6}{5}=1.2\\\\x^2+16=0\\x^2=-16\\x=\sqrt{-16}=\pm 4i$

There are 3 real values and 2 imaginary values. The value of 'x' as 0 is repeated twice.

Therefore, the values of 'x' are -1.2, 0, 0, $-4i$ or $4i$ .

4 0

3 years ago

What's the difference between 6z and z6

Airida [17]

Simple..

there is a major difference between 6z and $z^{6}$

6z means: 6 times z

and

$z^{6}$ means: z to the power of 6(z*z*z*z*z*z)

An example...

make z=2...plug n chug..

6z----> 6(2)=12
and
$z^{6}$ ---> $2^{6}$ =64

As you can see..there is a major difference.

Thus, your answer.

4 0

2 years ago

A student is jogging a rate of 2/3 of a mile in 2/5 of an hour

ValentinkaMS [17]

2/5 of an hour is 12 minutes

5 0

2 years ago

I am just completely lost and am unsure of how to approach this problem.

Ipatiy [6.2K]

Answer:47

Step-by-step explanation: sum of angles in a straight is 180

Aob +Box =180

6x+29+3x+124 =180

9x + 153 = 180

9x =27

x= 3

Boc =6*3 +29

Boc = 47

4 0

2 years ago

The product of complete numbers<br> (4, 6) and (5-6) is ?

alexdok [17]

Answer:

(38,9)

Step-by-step explanation:

4 0

2 years ago