All categories

3 years ago

If 5 out of 25 people like chocolate ice cream, what percent of the people do not like chocolate ice cream

Mathematics

2 answers:

d1i1m1o1n [39]3 years ago

7 0

100 - ((5÷25)x100),
hence C. 80%

bonufazy [111]3 years ago

5 0

First, count the people who don't like choco ice cream
dont like = whole - who like
dont like = 25 - 5
dont like = 20
There are 20 people who dont like choco ice cream

Second, transform the number of people to percentage.
percentage = number who dont like/whole
percentage = 20/25

Percentage means per hundred, so we need to change the denominator to 100. To change the denominator, it should be multiplied by 4. The numerator also need to be multiplied by 4.
percentage = 20/25
percentage = (20 × 4)/(25 × 4)
percentage = 80/100
percentage = 80%

The answer is c. 80%

You might be interested in

What is the answer to 9x(6+x)

Anna11 [10]

$54x + x \\ \\ (constributive \: property)$

5 0

4 years ago

Marissa is painting one of her bedroom walls. She marks off 1/4 of the wall. Then she divides the marked section into 3 equal pa

Sergio039 [100]

Answer:

1/12

Step-by-step explanation:

The question can be written as (1/4) / 3. This is equivalent to (1/4)*(1/3), which is 1/12.

4 0

3 years ago

Find the y-intercept and the x-intercept of the line below.

STALIN [3.7K]

Answer:

the x- intercept is 1

the y-intercept is 2

7 0

3 years ago

The mean number of daily surgeries at a local hospital is 6.2. Assume that surgeries are random, independent events. (a) The cou

Scilla [17]

Answer:

a) correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

b) probability for only 2 or less than 2 surgeries in a given day is 0.0536

Step-by-step explanation:

Given data:

mean number is given as 6.2

correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

we know that variance is given as $\sigma^2 = mean = 6.2$

hence, standard deviation is given as $\sqrt{6.2} = 2.48998$

thus standard deviation is 2.49

correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

b) probability for only 2 or less than 2 surgeries in a given day is

$P(X \leq 2) = P(X =0) + P(X =1) + P(X =2)$

$= \frac{e^{-6.2} 6.2^0}{0!} +\frac{e^{-6.2} 6.2^1}{1!} +\frac{e^{-6.2} 6.2^2}{2!}$

= 0.002029 + 0.012582+ 0.039006

= 0.053617

= 0.0536

7 0

3 years ago

A perfect square trinomial can be represented by a square model with equivalent length and width. Which polynomial can be repres

lina2011 [118]

The correct answer is
$A) x^2 - 6x + 9$

In fact, this is a trinomial of the form $ax^2-bx+c$ , whose solutions are given by
$x_{1,2}= \frac{-b\pm \sqrt{b^2 -4ac} }{2a}$
Using this formula for the trinomial of the problem, we find:
$x1,2= \frac{6 \pm \sqrt{6^2-4\cdot 1\cdot 9}}{2} =3$
<span>we see that this trinomial has two coincident solutions (x=3 with multiplicity 2). This means that it can be rewritten as a perfect square, in the following form:
</span> $(x-3)^2$ <span>
</span>

8 0

3 years ago

Read 2 more answers